10515440112 has 40 divisors (see below), whose sum is σ = 27182095056. Its totient is φ = 3502926336.

The previous prime is 10515440101. The next prime is 10515440129. The reversal of 10515440112 is 21104451501.

It is a super-2 number, since 2×10515440112² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8068 + ... + 145244.

Almost surely, 2^10515440112 is an apocalyptic number.

10515440112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10515440112 is an abundant number, since it is smaller than the sum of its proper divisors (16666654944).

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

10515440112 is a wasteful number, since it uses less digits than its factorization.

10515440112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 138785 (or 138779 counting only the distinct ones).

The product of its (nonzero) digits is 800, while the sum is 24.

Adding to 10515440112 its reverse (21104451501), we get a palindrome (31619891613).

The spelling of 10515440112 in words is "ten billion, five hundred fifteen million, four hundred forty thousand, one hundred twelve".