231545520054200 has 96 divisors (see below), whose sum is σ = 587288467895760. Its totient is φ = 84197678361600.

The previous prime is 231545520054181. The next prime is 231545520054229. The reversal of 231545520054200 is 2450025545132.

It is a super-2 number, since 2×231545520054200² (a number of 30 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 23 ways as a sum of consecutive naturals, for example, 321493694 + ... + 322213106.

Almost surely, 2^{231545520054200} is an apocalyptic number.

231545520054200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231545520054200 is an abundant number, since it is smaller than the sum of its proper divisors (355742947841560).

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

231545520054200 is a wasteful number, since it uses less digits than its factorization.

231545520054200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865737 (or 865728 counting only the distinct ones).

The product of its (nonzero) digits is 240000, while the sum is 38.

Adding to 231545520054200 its reverse (2450025545132), we get a palindrome (233995545599332).

The spelling of 231545520054200 in words is "two hundred thirty-one trillion, five hundred forty-five billion, five hundred twenty million, fifty-four thousand, two hundred".