513231203254 has 64 divisors (see below), whose sum is σ = 987619184640. Its totient is φ = 194218405920.

The previous prime is 513231203249. The next prime is 513231203357. The reversal of 513231203254 is 452302132315.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 968847 + ... + 1401829.

It is an arithmetic number, because the mean of its divisors is an integer number (15431549760).

Almost surely, 2^513231203254 is an apocalyptic number.

513231203254 is a deficient number, since it is larger than the sum of its proper divisors (474387981386).

513231203254 is a wasteful number, since it uses less digits than its factorization.

513231203254 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433225.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 513231203254 its reverse (452302132315), we get a palindrome (965533335569).

The spelling of 513231203254 in words is "five hundred thirteen billion, two hundred thirty-one million, two hundred three thousand, two hundred fifty-four".