20122031233 has 4 divisors (see below), whose sum is σ = 20125927728. Its totient is φ = 20118134740.

The previous prime is 20122031227. The next prime is 20122031239. The reversal of 20122031233 is 33213022102.

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 an interprime number because it is at equal distance from previous prime (20122031227) and next prime (20122031239).

It is a cyclic number.

It is not a de Polignac number, because 20122031233 - 2²⁵ = 20088476801 is a prime.

It is a super-2 number, since 2×20122031233² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122031233.

It is not an unprimeable number, because it can be changed into a prime (20122031239) 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, 1940491 + ... + 1950832.

It is an arithmetic number, because the mean of its divisors is an integer number (5031481932).

Almost surely, 2^20122031233 is an apocalyptic number.

It is an amenable number.

20122031233 is a deficient number, since it is larger than the sum of its proper divisors (3896495).

20122031233 is an equidigital number, since it uses as much as digits as its factorization.

20122031233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3896494.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20122031233 its reverse (33213022102), we get a palindrome (53335053335).

It can be divided in two parts, 20 and 122031233, that added together give a triangular number (122031253 = T₁₅₆₂₂).

The spelling of 20122031233 in words is "twenty billion, one hundred twenty-two million, thirty-one thousand, two hundred thirty-three".