231225513132 has 24 divisors (see below), whose sum is σ = 539575646400. Its totient is φ = 77068106896.

The previous prime is 231225513121. The next prime is 231225513161. The reversal of 231225513132 is 231315522132.

It is a self number, because there is not a number n which added to its sum of digits gives 231225513132.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 745782 + ... + 1009277.

It is an arithmetic number, because the mean of its divisors is an integer number (22482318600).

Almost surely, 2^231225513132 is an apocalyptic number.

It is an amenable number.

231225513132 is an abundant number, since it is smaller than the sum of its proper divisors (308350133268).

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

231225513132 is a wasteful number, since it uses less digits than its factorization.

231225513132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1766045 (or 1766043 counting only the distinct ones).

The product of its digits is 10800, while the sum is 30.

The spelling of 231225513132 in words is "two hundred thirty-one billion, two hundred twenty-five million, five hundred thirteen thousand, one hundred thirty-two".