102021313133 has 4 divisors (see below), whose sum is σ = 103312722240. Its totient is φ = 100729904028.

The previous prime is 102021313099. The next prime is 102021313153. The reversal of 102021313133 is 331313120201.

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 102021313133 - 2¹² = 102021309037 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 (102021313153) 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, 645704435 + ... + 645704592.

It is an arithmetic number, because the mean of its divisors is an integer number (25828180560).

Almost surely, 2^102021313133 is an apocalyptic number.

It is an amenable number.

102021313133 is a deficient number, since it is larger than the sum of its proper divisors (1291409107).

102021313133 is an equidigital number, since it uses as much as digits as its factorization.

102021313133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1291409106.

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

Adding to 102021313133 its reverse (331313120201), we get a palindrome (433334433334).

The spelling of 102021313133 in words is "one hundred two billion, twenty-one million, three hundred thirteen thousand, one hundred thirty-three".