10020253531 has 32 divisors (see below), whose sum is σ = 11000274048. Its totient is φ = 9101030400.

The previous prime is 10020253519. The next prime is 10020253549. The reversal of 10020253531 is 13535202001.

It is a cyclic number.

It is not a de Polignac number, because 10020253531 - 2⁵ = 10020253499 is a prime.

It is a super-2 number, since 2×10020253531² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10020253561) 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, 6273625 + ... + 6275221.

It is an arithmetic number, because the mean of its divisors is an integer number (343758564).

Almost surely, 2^10020253531 is an apocalyptic number.

10020253531 is a deficient number, since it is larger than the sum of its proper divisors (980020517).

10020253531 is a wasteful number, since it uses less digits than its factorization.

10020253531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1831.

The product of its (nonzero) digits is 900, while the sum is 22.

Adding to 10020253531 its reverse (13535202001), we get a palindrome (23555455532).

The spelling of 10020253531 in words is "ten billion, twenty million, two hundred fifty-three thousand, five hundred thirty-one".