10311143204021 has 4 divisors (see below), whose sum is σ = 11248519858944. Its totient is φ = 9373766549100.

The previous prime is 10311143203981. The next prime is 10311143204071. The reversal of 10311143204021 is 12040234111301.

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 10311143204021 - 2³⁰ = 10310069462197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10311143204071) 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, 468688327445 + ... + 468688327466.

It is an arithmetic number, because the mean of its divisors is an integer number (2812129964736).

Almost surely, 2^{10311143204021} is an apocalyptic number.

10311143204021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10311143204021 is a deficient number, since it is larger than the sum of its proper divisors (937376654923).

10311143204021 is an equidigital number, since it uses as much as digits as its factorization.

10311143204021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 937376654922.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 10311143204021 its reverse (12040234111301), we get a palindrome (22351377315322).

The spelling of 10311143204021 in words is "ten trillion, three hundred eleven billion, one hundred forty-three million, two hundred four thousand, twenty-one".