20232173421256 has 16 divisors (see below), whose sum is σ = 37936056298140. Its totient is φ = 10115891741760.

The previous prime is 20232173421233. The next prime is 20232173421307. The reversal of 20232173421256 is 65212437123202.

It can be written as a sum of positive squares in 2 ways, for example, as 20211624198756 + 20549222500 = 4495734^2 + 143350^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23929611 + ... + 24760666.

Almost surely, 2^{20232173421256} is an apocalyptic number.

It is an amenable number.

20232173421256 is a deficient number, since it is larger than the sum of its proper divisors (17703882876884).

20232173421256 is a wasteful number, since it uses less digits than its factorization.

20232173421256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48742224 (or 48742220 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 40.

The spelling of 20232173421256 in words is "twenty trillion, two hundred thirty-two billion, one hundred seventy-three million, four hundred twenty-one thousand, two hundred fifty-six".