23132203031 has 4 divisors (see below), whose sum is σ = 26436803472. Its totient is φ = 19827602592.

The previous prime is 23132203021. The next prime is 23132203043. The reversal of 23132203031 is 13030223132.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-23132203031 is a prime.

It is a super-2 number, since 2×23132203031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23132202994 and 23132203012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23132203001) 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, 1652300210 + ... + 1652300223.

It is an arithmetic number, because the mean of its divisors is an integer number (6609200868).

Almost surely, 2^23132203031 is an apocalyptic number.

23132203031 is a deficient number, since it is larger than the sum of its proper divisors (3304600441).

23132203031 is an equidigital number, since it uses as much as digits as its factorization.

23132203031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304600440.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 23132203031 its reverse (13030223132), we get a palindrome (36162426163).

The spelling of 23132203031 in words is "twenty-three billion, one hundred thirty-two million, two hundred three thousand, thirty-one".