10521042513531 has 32 divisors (see below), whose sum is σ = 15635098828800. Its totient is φ = 6238261262880.

The previous prime is 10521042513517. The next prime is 10521042513581. The reversal of 10521042513531 is 13531524012501.

10521042513531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 10521042513531 - 2⁷ = 10521042513403 is a prime.

It is a super-2 number, since 2×10521042513531² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a junction number, because it is equal to n+sod(n) for n = 10521042513492 and 10521042513501.

It is not an unprimeable number, because it can be changed into a prime (10521042513581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2602150 + ... + 5273828.

It is an arithmetic number, because the mean of its divisors is an integer number (488596838400).

Almost surely, 2^{10521042513531} is an apocalyptic number.

10521042513531 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

10521042513531 is a deficient number, since it is larger than the sum of its proper divisors (5114056315269).

10521042513531 is a wasteful number, since it uses less digits than its factorization.

10521042513531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2674279.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 10521042513531 in words is "ten trillion, five hundred twenty-one billion, forty-two million, five hundred thirteen thousand, five hundred thirty-one".