102131233013 has 4 divisors (see below), whose sum is σ = 108138952620. Its totient is φ = 96123513408.

The previous prime is 102131232977. The next prime is 102131233031. The reversal of 102131233013 is 310332131201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 310332131201 = 43 ⋅7217026307.

It can be written as a sum of positive squares in 2 ways, for example, as 85204442404 + 16926790609 = 291898^2 + 130103^2 .

It is a cyclic number.

It is not a de Polignac number, because 102131233013 - 2¹⁶ = 102131167477 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102134233013) 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, 3003859778 + ... + 3003859811.

It is an arithmetic number, because the mean of its divisors is an integer number (27034738155).

Almost surely, 2^102131233013 is an apocalyptic number.

It is an amenable number.

102131233013 is a deficient number, since it is larger than the sum of its proper divisors (6007719607).

102131233013 is an equidigital number, since it uses as much as digits as its factorization.

102131233013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6007719606.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 102131233013 its reverse (310332131201), we get a palindrome (412463364214).

The spelling of 102131233013 in words is "one hundred two billion, one hundred thirty-one million, two hundred thirty-three thousand, thirteen".