202402021013 has 4 divisors (see below), whose sum is σ = 206708447040. Its totient is φ = 198095594988.

The previous prime is 202402021009. The next prime is 202402021039. The reversal of 202402021013 is 310120204202.

202402021013 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 202402021013 - 2² = 202402021009 is a prime.

It is a super-2 number, since 2×202402021013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 202402020982 and 202402021000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202402021093) 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, 2153212943 + ... + 2153213036.

It is an arithmetic number, because the mean of its divisors is an integer number (51677111760).

Almost surely, 2^202402021013 is an apocalyptic number.

It is an amenable number.

202402021013 is a deficient number, since it is larger than the sum of its proper divisors (4306426027).

202402021013 is an equidigital number, since it uses as much as digits as its factorization.

202402021013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4306426026.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 202402021013 its reverse (310120204202), we get a palindrome (512522225215).

The spelling of 202402021013 in words is "two hundred two billion, four hundred two million, twenty-one thousand, thirteen".