102021003013 has 4 divisors (see below), whose sum is σ = 103250171808. Its totient is φ = 100791834220.

The previous prime is 102021002981. The next prime is 102021003061. The reversal of 102021003013 is 310300120201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 310300120201 = 3833 ⋅80954897.

It is a cyclic number.

It is not a de Polignac number, because 102021003013 - 2⁵ = 102021002981 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102021002984 and 102021003002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102021003713) 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, 614584273 + ... + 614584438.

It is an arithmetic number, because the mean of its divisors is an integer number (25812542952).

Almost surely, 2^102021003013 is an apocalyptic number.

It is an amenable number.

102021003013 is a deficient number, since it is larger than the sum of its proper divisors (1229168795).

102021003013 is an equidigital number, since it uses as much as digits as its factorization.

102021003013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1229168794.

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 102021003013 its reverse (310300120201), we get a palindrome (412321123214).

The spelling of 102021003013 in words is "one hundred two billion, twenty-one million, three thousand, thirteen".