20372611133 has 4 divisors (see below), whose sum is σ = 23282984160. Its totient is φ = 17462238108.

The previous prime is 20372611111. The next prime is 20372611159. The reversal of 20372611133 is 33111627302.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 20372611133 - 2³⁰ = 19298869309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20372611096 and 20372611105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20372611333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1455186503 + ... + 1455186516.

It is an arithmetic number, because the mean of its divisors is an integer number (5820746040).

Almost surely, 2^20372611133 is an apocalyptic number.

It is an amenable number.

20372611133 is a deficient number, since it is larger than the sum of its proper divisors (2910373027).

20372611133 is an equidigital number, since it uses as much as digits as its factorization.

20372611133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2910373026.

The product of its (nonzero) digits is 4536, while the sum is 29.

The spelling of 20372611133 in words is "twenty billion, three hundred seventy-two million, six hundred eleven thousand, one hundred thirty-three".