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10031121132 = 223835926761
BaseRepresentation
bin10010101011110011…
…01100001011101100
3221220002022202021220
421111321230023230
5131020431334012
64335213423340
7503403060054
oct112571541354
927802282256
1010031121132
11428834085a
121b3b49ab50
13c3b295846
146b2344564
153da9a908c
hex255e6c2ec

10031121132 has 12 divisors (see below), whose sum is σ = 23405949336. Its totient is φ = 3343707040.

The previous prime is 10031121127. The next prime is 10031121137. The reversal of 10031121132 is 23112113001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10031121127) and next prime (10031121137).

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×100311211322 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10031121137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 417963369 + ... + 417963392.

It is an arithmetic number, because the mean of its divisors is an integer number (1950495778).

Almost surely, 210031121132 is an apocalyptic number.

10031121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10031121132 is an abundant number, since it is smaller than the sum of its proper divisors (13374828204).

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

10031121132 is a wasteful number, since it uses less digits than its factorization.

10031121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 835926768 (or 835926766 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 10031121132 its reverse (23112113001), we get a palindrome (33143234133).

The spelling of 10031121132 in words is "ten billion, thirty-one million, one hundred twenty-one thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 835926761 1671853522 2507780283 3343707044 5015560566 10031121132