231545510021350 has 48 divisors (see below), whose sum is σ = 501486383361888. Its totient is φ = 77889163472640.

The previous prime is 231545510021347. The next prime is 231545510021363. The reversal of 231545510021350 is 53120015545132.

It is a super-2 number, since 2×231545510021350² (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, 6241100319 + ... + 6241137418.

It is an arithmetic number, because the mean of its divisors is an integer number (10447632986706).

Almost surely, 2^{231545510021350} is an apocalyptic number.

231545510021350 is an abundant number, since it is smaller than the sum of its proper divisors (269940873340538).

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

231545510021350 is a wasteful number, since it uses less digits than its factorization.

231545510021350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12482237809 (or 12482237804 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 37.

Adding to 231545510021350 its reverse (53120015545132), we get a palindrome (284665525566482).

The spelling of 231545510021350 in words is "two hundred thirty-one trillion, five hundred forty-five billion, five hundred ten million, twenty-one thousand, three hundred fifty".