231513450310553 has 4 divisors (see below), whose sum is σ = 231514684321920. Its totient is φ = 231512216299188.

The previous prime is 231513450310547. The next prime is 231513450310561. The reversal of 231513450310553 is 355013054315132.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 231513450310553 - 2³⁰ = 231512376568729 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 231513450310553.

It is not an unprimeable number, because it can be changed into a prime (231513450310853) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 616724225 + ... + 617099502.

It is an arithmetic number, because the mean of its divisors is an integer number (57878671080480).

Almost surely, 2^{231513450310553} is an apocalyptic number.

It is an amenable number.

231513450310553 is a deficient number, since it is larger than the sum of its proper divisors (1234011367).

231513450310553 is a wasteful number, since it uses less digits than its factorization.

231513450310553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1234011366.

The product of its (nonzero) digits is 405000, while the sum is 41.

The spelling of 231513450310553 in words is "two hundred thirty-one trillion, five hundred thirteen billion, four hundred fifty million, three hundred ten thousand, five hundred fifty-three".