231240052502 has 16 divisors (see below), whose sum is σ = 350195873040. Its totient is φ = 114508675968.

The previous prime is 231240052487. The next prime is 231240052541. The reversal of 231240052502 is 205250042132.

It is a super-2 number, since 2×231240052502² (a number of 24 digits) contains 22 as substring.

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, 663218 + ... + 949914.

It is an arithmetic number, because the mean of its divisors is an integer number (21887242065).

Almost surely, 2^231240052502 is an apocalyptic number.

231240052502 is a deficient number, since it is larger than the sum of its proper divisors (118955820538).

231240052502 is a wasteful number, since it uses less digits than its factorization.

231240052502 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290575.

The product of its (nonzero) digits is 4800, while the sum is 26.

Adding to 231240052502 its reverse (205250042132), we get a palindrome (436490094634).

The spelling of 231240052502 in words is "two hundred thirty-one billion, two hundred forty million, fifty-two thousand, five hundred two".