102312123031 has 2 divisors, whose sum is σ = 102312123032. Its totient is φ = 102312123030.

The previous prime is 102312122999. The next prime is 102312123037. The reversal of 102312123031 is 130321213201.

It is a strong prime.

It is an emirp because it is prime and its reverse (130321213201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102312123031 - 2⁵ = 102312122999 is a prime.

It is a super-2 number, since 2×102312123031² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102312123037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51156061515 + 51156061516.

It is an arithmetic number, because the mean of its divisors is an integer number (51156061516).

Almost surely, 2^102312123031 is an apocalyptic number.

102312123031 is a deficient number, since it is larger than the sum of its proper divisors (1).

102312123031 is an equidigital number, since it uses as much as digits as its factorization.

102312123031 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 102312123031 its reverse (130321213201), we get a palindrome (232633336232).

The spelling of 102312123031 in words is "one hundred two billion, three hundred twelve million, one hundred twenty-three thousand, thirty-one".