23210121331 has 2 divisors, whose sum is σ = 23210121332. Its totient is φ = 23210121330.

The previous prime is 23210121317. The next prime is 23210121359. The reversal of 23210121331 is 13312101232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23210121331 - 2⁵ = 23210121299 is a prime.

It is a super-2 number, since 2×23210121331² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23210121299 and 23210121308.

It is not a weakly prime, because it can be changed into another prime (23210121391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11605060665 + 11605060666.

It is an arithmetic number, because the mean of its divisors is an integer number (11605060666).

Almost surely, 2^23210121331 is an apocalyptic number.

23210121331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23210121331 is an equidigital number, since it uses as much as digits as its factorization.

23210121331 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 23210121331 its reverse (13312101232), we get a palindrome (36522222563).

The spelling of 23210121331 in words is "twenty-three billion, two hundred ten million, one hundred twenty-one thousand, three hundred thirty-one".