231511451452 has 12 divisors (see below), whose sum is σ = 405442731456. Its totient is φ = 115670671040.

The previous prime is 231511451419. The next prime is 231511451459. The reversal of 231511451452 is 254154115132.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231511451459) 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, 21257548 + ... + 21268435.

It is an arithmetic number, because the mean of its divisors is an integer number (33786894288).

Almost surely, 2^231511451452 is an apocalyptic number.

It is an amenable number.

231511451452 is a deficient number, since it is larger than the sum of its proper divisors (173931280004).

231511451452 is a wasteful number, since it uses less digits than its factorization.

231511451452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42527348 (or 42527346 counting only the distinct ones).

The product of its digits is 24000, while the sum is 34.

Adding to 231511451452 its reverse (254154115132), we get a palindrome (485665566584).

The spelling of 231511451452 in words is "two hundred thirty-one billion, five hundred eleven million, four hundred fifty-one thousand, four hundred fifty-two".