102312021211013 has 4 divisors (see below), whose sum is σ = 102312043464288. Its totient is φ = 102311998957740.

The previous prime is 102312021211009. The next prime is 102312021211091. The reversal of 102312021211013 is 310112120213201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102312021211013 - 2² = 102312021211009 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102312021261013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1390283 + ... + 14372088.

It is an arithmetic number, because the mean of its divisors is an integer number (25578010866072).

Almost surely, 2^{102312021211013} is an apocalyptic number.

It is an amenable number.

102312021211013 is a deficient number, since it is larger than the sum of its proper divisors (22253275).

102312021211013 is an equidigital number, since it uses as much as digits as its factorization.

102312021211013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22253274.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 102312021211013 its reverse (310112120213201), we get a palindrome (412424141424214).

The spelling of 102312021211013 in words is "one hundred two trillion, three hundred twelve billion, twenty-one million, two hundred eleven thousand, thirteen".