10311403220021 has 4 divisors (see below), whose sum is σ = 10320090165792. Its totient is φ = 10302716274252.

The previous prime is 10311403220003. The next prime is 10311403220057. The reversal of 10311403220021 is 12002230411301.

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 10311403220021 - 2²² = 10311399025717 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10311403219975 and 10311403220002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311403220071) 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, 4343471105 + ... + 4343473478.

It is an arithmetic number, because the mean of its divisors is an integer number (2580022541448).

Almost surely, 2^{10311403220021} is an apocalyptic number.

It is an amenable number.

10311403220021 is a deficient number, since it is larger than the sum of its proper divisors (8686945771).

10311403220021 is an equidigital number, since it uses as much as digits as its factorization.

10311403220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8686945770.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 10311403220021 its reverse (12002230411301), we get a palindrome (22313633631322).

The spelling of 10311403220021 in words is "ten trillion, three hundred eleven billion, four hundred three million, two hundred twenty thousand, twenty-one".