10513531352431 has 4 divisors (see below), whose sum is σ = 10518469603200. Its totient is φ = 10508593101664.

The previous prime is 10513531352419. The next prime is 10513531352477. The reversal of 10513531352431 is 13425313531501.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10513531352431 - 2²⁷ = 10513397134703 is a prime.

It is a super-2 number, since 2×10513531352431² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10513531352411) 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, 2469122191 + ... + 2469126448.

It is an arithmetic number, because the mean of its divisors is an integer number (2629617400800).

Almost surely, 2^{10513531352431} is an apocalyptic number.

10513531352431 is a deficient number, since it is larger than the sum of its proper divisors (4938250769).

10513531352431 is an equidigital number, since it uses as much as digits as its factorization.

10513531352431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4938250768.

The product of its (nonzero) digits is 81000, while the sum is 37.

Adding to 10513531352431 its reverse (13425313531501), we get a palindrome (23938844883932).

The spelling of 10513531352431 in words is "ten trillion, five hundred thirteen billion, five hundred thirty-one million, three hundred fifty-two thousand, four hundred thirty-one".