10520242531 has 4 divisors (see below), whose sum is σ = 10622380912. Its totient is φ = 10418104152.

The previous prime is 10520242477. The next prime is 10520242559. The reversal of 10520242531 is 13524202501.

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 10520242531 - 2¹⁹ = 10519718243 is a prime.

It is a super-2 number, since 2×10520242531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10520242496 and 10520242505.

It is not an unprimeable number, because it can be changed into a prime (10520242561) 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, 51069036 + ... + 51069241.

It is an arithmetic number, because the mean of its divisors is an integer number (2655595228).

Almost surely, 2^10520242531 is an apocalyptic number.

10520242531 is a deficient number, since it is larger than the sum of its proper divisors (102138381).

10520242531 is a wasteful number, since it uses less digits than its factorization.

10520242531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102138380.

The product of its (nonzero) digits is 2400, while the sum is 25.

The spelling of 10520242531 in words is "ten billion, five hundred twenty million, two hundred forty-two thousand, five hundred thirty-one".