102311230313021 has 2 divisors, whose sum is σ = 102311230313022. Its totient is φ = 102311230313020.

The previous prime is 102311230312937. The next prime is 102311230313101. The reversal of 102311230313021 is 120313032113201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102310898563225 + 331749796 = 10114885^2 + 18214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102311230313021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102311230613021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51155615156510 + 51155615156511.

It is an arithmetic number, because the mean of its divisors is an integer number (51155615156511).

Almost surely, 2^{102311230313021} is an apocalyptic number.

It is an amenable number.

102311230313021 is a deficient number, since it is larger than the sum of its proper divisors (1).

102311230313021 is an equidigital number, since it uses as much as digits as its factorization.

102311230313021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 102311230313021 its reverse (120313032113201), we get a palindrome (222624262426222).

The spelling of 102311230313021 in words is "one hundred two trillion, three hundred eleven billion, two hundred thirty million, three hundred thirteen thousand, twenty-one".