3023131100021 has 4 divisors (see below), whose sum is σ = 3182243263200. Its totient is φ = 2864018936844.

The previous prime is 3023131099999. The next prime is 3023131100023. The reversal of 3023131100021 is 1200011313203.

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 a de Polignac number, because none of the positive numbers 2^k-3023131100021 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 (3023131100023) 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, 79556081561 + ... + 79556081598.

It is an arithmetic number, because the mean of its divisors is an integer number (795560815800).

Almost surely, 2^{3023131100021} is an apocalyptic number.

It is an amenable number.

3023131100021 is a deficient number, since it is larger than the sum of its proper divisors (159112163179).

3023131100021 is a wasteful number, since it uses less digits than its factorization.

3023131100021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159112163178.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 3023131100021 its reverse (1200011313203), we get a palindrome (4223142413224).

The spelling of 3023131100021 in words is "three trillion, twenty-three billion, one hundred thirty-one million, one hundred thousand, twenty-one".