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1031220314120 = 23510122527253
BaseRepresentation
bin11110000000110011000…
…01010100000000001000
310122120202111221201010102
433000121201110000020
5113343414400022440
62105422554104532
7134334413021003
oct17003141240010
93576674851112
101031220314120
11368379a8aa97
12147a3571b148
13763224184a9
1437ca898c53a
151bc5758eb15
hexf019854008

1031220314120 has 48 divisors (see below), whose sum is σ = 2343446816580. Its totient is φ = 408403923200.

The previous prime is 1031220314119. The next prime is 1031220314141. The reversal of 1031220314120 is 214130221301.

It can be written as a sum of positive squares in 6 ways, for example, as 952689219364 + 78531094756 = 976058^2 + 280234^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1031220314092 and 1031220314101.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 855587 + ... + 1671666.

Almost surely, 21031220314120 is an apocalyptic number.

1031220314120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1031220314120 is an abundant number, since it is smaller than the sum of its proper divisors (1312226502460).

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

1031220314120 is a wasteful number, since it uses less digits than its factorization.

1031220314120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2527466 (or 2527361 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1031220314120 its reverse (214130221301), we get a palindrome (1245350535421).

The spelling of 1031220314120 in words is "one trillion, thirty-one billion, two hundred twenty million, three hundred fourteen thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 505 808 1010 2020 4040 10201 20402 40804 51005 81608 102010 204020 408040 2527253 5054506 10109012 12636265 20218024 25272530 50545060 101090120 255252553 510505106 1021010212 1276262765 2042020424 2552525530 5105051060 10210102120 25780507853 51561015706 103122031412 128902539265 206244062824 257805078530 515610157060 1031220314120