515054240023031 has 32 divisors (see below), whose sum is σ = 572542549286400. Its totient is φ = 461145660243840.

The previous prime is 515054240023013. The next prime is 515054240023117. The reversal of 515054240023031 is 130320042450515.

It is not a de Polignac number, because 515054240023031 - 2³⁸ = 514779362116087 is a prime.

It is a super-2 number, since 2×515054240023031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 515054240022982 and 515054240023000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (515054240023831) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6534656 + ... + 32753781.

It is an arithmetic number, because the mean of its divisors is an integer number (17891954665200).

Almost surely, 2^{515054240023031} is an apocalyptic number.

515054240023031 is a deficient number, since it is larger than the sum of its proper divisors (57488309263369).

515054240023031 is a wasteful number, since it uses less digits than its factorization.

515054240023031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39288839.

The product of its (nonzero) digits is 72000, while the sum is 35.

Adding to 515054240023031 its reverse (130320042450515), we get a palindrome (645374282473546).

The spelling of 515054240023031 in words is "five hundred fifteen trillion, fifty-four billion, two hundred forty million, twenty-three thousand, thirty-one".