23333031213131 has 2 divisors, whose sum is σ = 23333031213132. Its totient is φ = 23333031213130.

The previous prime is 23333031213101. The next prime is 23333031213181. The reversal of 23333031213131 is 13131213033332.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23333031213131 is a prime.

It is a super-2 number, since 2×23333031213131² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23333031213094 and 23333031213103.

It is not a weakly prime, because it can be changed into another prime (23333031213101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11666515606565 + 11666515606566.

It is an arithmetic number, because the mean of its divisors is an integer number (11666515606566).

Almost surely, 2^{23333031213131} is an apocalyptic number.

23333031213131 is a deficient number, since it is larger than the sum of its proper divisors (1).

23333031213131 is an equidigital number, since it uses as much as digits as its factorization.

23333031213131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 23333031213131 its reverse (13131213033332), we get a palindrome (36464244246463).

The spelling of 23333031213131 in words is "twenty-three trillion, three hundred thirty-three billion, thirty-one million, two hundred thirteen thousand, one hundred thirty-one".