102021424313 has 4 divisors (see below), whose sum is σ = 102078838260. Its totient is φ = 101964010368.

The previous prime is 102021424283. The next prime is 102021424357. The reversal of 102021424313 is 313424120201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313424120201 = 17 ⋅18436712953.

It can be written as a sum of positive squares in 2 ways, for example, as 33830980624 + 68190443689 = 183932^2 + 261133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102021424313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102021424213) 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, 28704308 + ... + 28707861.

It is an arithmetic number, because the mean of its divisors is an integer number (25519709565).

Almost surely, 2^102021424313 is an apocalyptic number.

It is an amenable number.

102021424313 is a deficient number, since it is larger than the sum of its proper divisors (57413947).

102021424313 is an equidigital number, since it uses as much as digits as its factorization.

102021424313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57413946.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 102021424313 its reverse (313424120201), we get a palindrome (415445544514).

The spelling of 102021424313 in words is "one hundred two billion, twenty-one million, four hundred twenty-four thousand, three hundred thirteen".