123310331971 has 2 divisors, whose sum is σ = 123310331972. Its totient is φ = 123310331970.

The previous prime is 123310331927. The next prime is 123310331983. The reversal of 123310331971 is 179133013321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123310331971 - 2⁷ = 123310331843 is a prime.

It is not a weakly prime, because it can be changed into another prime (123310331371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61655165985 + 61655165986.

It is an arithmetic number, because the mean of its divisors is an integer number (61655165986).

Almost surely, 2^123310331971 is an apocalyptic number.

123310331971 is a deficient number, since it is larger than the sum of its proper divisors (1).

123310331971 is an equidigital number, since it uses as much as digits as its factorization.

123310331971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 34.

The spelling of 123310331971 in words is "one hundred twenty-three billion, three hundred ten million, three hundred thirty-one thousand, nine hundred seventy-one".