102021503379 has 4 divisors (see below), whose sum is σ = 136028671176. Its totient is φ = 68014335584.

The previous prime is 102021503377. The next prime is 102021503417. The reversal of 102021503379 is 973305120201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102021503379 - 2¹ = 102021503377 is a prime.

It is a super-2 number, since 2×102021503379² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102021503377) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17003583894 + ... + 17003583899.

It is an arithmetic number, because the mean of its divisors is an integer number (34007167794).

Almost surely, 2^102021503379 is an apocalyptic number.

102021503379 is a deficient number, since it is larger than the sum of its proper divisors (34007167797).

102021503379 is an equidigital number, since it uses as much as digits as its factorization.

102021503379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34007167796.

The product of its (nonzero) digits is 11340, while the sum is 33.

The spelling of 102021503379 in words is "one hundred two billion, twenty-one million, five hundred three thousand, three hundred seventy-nine".