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1102101231020 = 22555105061551
BaseRepresentation
bin10000000010011010010…
…110100011010110101100
310220100201022220100210212
4100002122112203112230
5121024100403343040
62202144234121552
7142424044616336
oct20023226432654
93810638810725
101102101231020
1139544245aa59
121597175802b8
137cc0a20753a
143b4b0594456
151da051acd65
hex1009a5a35ac

1102101231020 has 12 divisors (see below), whose sum is σ = 2314412585184. Its totient is φ = 440840492400.

The previous prime is 1102101231019. The next prime is 1102101231029. The reversal of 1102101231020 is 201321012011.

It is a junction number, because it is equal to n+sod(n) for n = 1102101230986 and 1102101231004.

It is not an unprimeable number, because it can be changed into a prime (1102101231029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27552530756 + ... + 27552530795.

It is an arithmetic number, because the mean of its divisors is an integer number (192867715432).

Almost surely, 21102101231020 is an apocalyptic number.

1102101231020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1102101231020 is an abundant number, since it is smaller than the sum of its proper divisors (1212311354164).

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

1102101231020 is a wasteful number, since it uses less digits than its factorization.

1102101231020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55105061560 (or 55105061558 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 1102101231020 its reverse (201321012011), we get a palindrome (1303422243031).

The spelling of 1102101231020 in words is "one trillion, one hundred two billion, one hundred one million, two hundred thirty-one thousand, twenty".

Divisors: 1 2 4 5 10 20 55105061551 110210123102 220420246204 275525307755 551050615510 1102101231020