21003113431302 has 64 divisors (see below), whose sum is σ = 42796147170816. Its totient is φ = 6870628477440.

The previous prime is 21003113431301. The next prime is 21003113431309. The reversal of 21003113431302 is 20313431130012.

It is a super-2 number, since 2×21003113431302² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21003113431301) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 526598253 + ... + 526638135.

It is an arithmetic number, because the mean of its divisors is an integer number (668689799544).

Almost surely, 2^{21003113431302} is an apocalyptic number.

21003113431302 is an abundant number, since it is smaller than the sum of its proper divisors (21793033739514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21003113431302 is a wasteful number, since it uses less digits than its factorization.

21003113431302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47645.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21003113431302 its reverse (20313431130012), we get a palindrome (41316544561314).

The spelling of 21003113431302 in words is "twenty-one trillion, three billion, one hundred thirteen million, four hundred thirty-one thousand, three hundred two".