231242512452 has 36 divisors (see below), whose sum is σ = 627658249680. Its totient is φ = 66069289104.

The previous prime is 231242512429. The next prime is 231242512471. The reversal of 231242512452 is 254215242132.

It is a super-2 number, since 2×231242512452² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 196634202 + ... + 196635377.

It is an arithmetic number, because the mean of its divisors is an integer number (17434951380).

Almost surely, 2^231242512452 is an apocalyptic number.

It is an amenable number.

231242512452 is an abundant number, since it is smaller than the sum of its proper divisors (396415737228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231242512452 is a wasteful number, since it uses less digits than its factorization.

231242512452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 393269600 (or 393269591 counting only the distinct ones).

The product of its digits is 38400, while the sum is 33.

Adding to 231242512452 its reverse (254215242132), we get a palindrome (485457754584).

The spelling of 231242512452 in words is "two hundred thirty-one billion, two hundred forty-two million, five hundred twelve thousand, four hundred fifty-two".