5131130002021 has 4 divisors (see below), whose sum is σ = 5218098307200. Its totient is φ = 5044161696844.

The previous prime is 5131130001997. The next prime is 5131130002051. The reversal of 5131130002021 is 1202000311315.

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 5131130002021 - 2²³ = 5131121613413 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 5131130002021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5131130002051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43484152501 + ... + 43484152618.

It is an arithmetic number, because the mean of its divisors is an integer number (1304524576800).

Almost surely, 2^{5131130002021} is an apocalyptic number.

It is an amenable number.

5131130002021 is a deficient number, since it is larger than the sum of its proper divisors (86968305179).

5131130002021 is an equidigital number, since it uses as much as digits as its factorization.

5131130002021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86968305178.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 5131130002021 its reverse (1202000311315), we get a palindrome (6333130313336).

The spelling of 5131130002021 in words is "five trillion, one hundred thirty-one billion, one hundred thirty million, two thousand, twenty-one".