23012211331 has 2 divisors, whose sum is σ = 23012211332. Its totient is φ = 23012211330.

The previous prime is 23012211319. The next prime is 23012211337. The reversal of 23012211331 is 13311221032.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23012211331 - 2¹³ = 23012203139 is a prime.

It is a super-2 number, since 2×23012211331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23012211299 and 23012211308.

It is not a weakly prime, because it can be changed into another prime (23012211337) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11506105665 + 11506105666.

It is an arithmetic number, because the mean of its divisors is an integer number (11506105666).

Almost surely, 2^23012211331 is an apocalyptic number.

23012211331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23012211331 is an equidigital number, since it uses as much as digits as its factorization.

23012211331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 23012211331 its reverse (13311221032), we get a palindrome (36323432363).

The spelling of 23012211331 in words is "twenty-three billion, twelve million, two hundred eleven thousand, three hundred thirty-one".