231545512214352 has 120 divisors (see below), whose sum is σ = 740582483187456. Its totient is φ = 66155469666048.

The previous prime is 231545512214347. The next prime is 231545512214377. The reversal of 231545512214352 is 253412215545132.

231545512214352 is a `hidden beast` number, since 2 + 3 + 1 + 5 + 4 + 551 + 2 + 2 + 1 + 43 + 52 = 666.

It is a super-2 number, since 2×231545512214352² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231545512214298 and 231545512214307.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 199132318 + ... + 200291714.

Almost surely, 2^{231545512214352} is an apocalyptic number.

It is an amenable number.

231545512214352 is an abundant number, since it is smaller than the sum of its proper divisors (509036970973104).

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

231545512214352 is a wasteful number, since it uses less digits than its factorization.

231545512214352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357545 (or 1357536 counting only the distinct ones).

The product of its digits is 1440000, while the sum is 45.

Adding to 231545512214352 its reverse (253412215545132), we get a palindrome (484957727759484).

The spelling of 231545512214352 in words is "two hundred thirty-one trillion, five hundred forty-five billion, five hundred twelve million, two hundred fourteen thousand, three hundred fifty-two".