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1101031010020 = 2251672831164841
BaseRepresentation
bin10000000001011010100…
…011111110111011100100
310220020221202002111121001
4100001122203332323210
5121014402414310040
62201450123403044
7142355401111444
oct20013243767344
93806852074531
101101031010020
11394a43335097
12159479083484
137ca99582086
143b40c3a8124
151d99125a59a
hex1005a8feee4

1101031010020 has 48 divisors (see below), whose sum is σ = 2334231543168. Its totient is φ = 436227920640.

The previous prime is 1101031010011. The next prime is 1101031010081. The reversal of 1101031010020 is 200101301011.

It is a super-2 number, since 2×11010310100202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 1101031009979 and 1101031010006.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362800 + ... + 1527640.

It is an arithmetic number, because the mean of its divisors is an integer number (48629823816).

Almost surely, 21101031010020 is an apocalyptic number.

1101031010020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101031010020 is an abundant number, since it is smaller than the sum of its proper divisors (1233200533148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1101031010020 is a wasteful number, since it uses less digits than its factorization.

1101031010020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1165300 (or 1165298 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 1101031010020 its reverse (200101301011), we get a palindrome (1301132311031).

The spelling of 1101031010020 in words is "one trillion, one hundred one billion, thirty-one million, ten thousand, twenty".

Divisors: 1 2 4 5 10 20 167 283 334 566 668 835 1132 1415 1670 2830 3340 5660 47261 94522 189044 236305 472610 945220 1164841 2329682 4659364 5824205 11648410 23296820 194528447 329650003 389056894 659300006 778113788 972642235 1318600012 1648250015 1945284470 3296500030 3890568940 6593000060 55051550501 110103101002 220206202004 275257752505 550515505010 1101031010020