20023231374433 has 16 divisors (see below), whose sum is σ = 22900034304000. Its totient is φ = 17150514864336.

The previous prime is 20023231374409. The next prime is 20023231374491. The reversal of 20023231374433 is 33447313232002.

It is a happy number.

It is not a de Polignac number, because 20023231374433 - 2⁵ = 20023231374401 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20023231374392 and 20023231374401.

It is not an unprimeable number, because it can be changed into a prime (20023231374403) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 365580216 + ... + 365634982.

It is an arithmetic number, because the mean of its divisors is an integer number (1431252144000).

Almost surely, 2^{20023231374433} is an apocalyptic number.

It is an amenable number.

20023231374433 is a deficient number, since it is larger than the sum of its proper divisors (2876802929567).

20023231374433 is a wasteful number, since it uses less digits than its factorization.

20023231374433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91116.

The product of its (nonzero) digits is 217728, while the sum is 37.

The spelling of 20023231374433 in words is "twenty trillion, twenty-three billion, two hundred thirty-one million, three hundred seventy-four thousand, four hundred thirty-three".