20232120515156 has 24 divisors (see below), whose sum is σ = 39870923715840. Its totient is φ = 8899759756800.

The previous prime is 20232120515083. The next prime is 20232120515171. The reversal of 20232120515156 is 65151502123202.

It is a happy number.

It is a congruent number.

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, 7416465101 + ... + 7416467828.

It is an arithmetic number, because the mean of its divisors is an integer number (1661288488160).

Almost surely, 2^{20232120515156} is an apocalyptic number.

It is an amenable number.

20232120515156 is a deficient number, since it is larger than the sum of its proper divisors (19638803200684).

20232120515156 is a wasteful number, since it uses less digits than its factorization.

20232120515156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14832932975 (or 14832932973 counting only the distinct ones).

The product of its (nonzero) digits is 36000, while the sum is 35.

Adding to 20232120515156 its reverse (65151502123202), we get a palindrome (85383622638358).

The spelling of 20232120515156 in words is "twenty trillion, two hundred thirty-two billion, one hundred twenty million, five hundred fifteen thousand, one hundred fifty-six".