213130131330031 has 4 divisors (see below), whose sum is σ = 213815437218864. Its totient is φ = 212444825441200.

The previous prime is 213130131329909. The next prime is 213130131330043. The reversal of 213130131330031 is 130033131031312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213130131330031 - 2⁷ = 213130131329903 is a prime.

It is a super-2 number, since 2×213130131330031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213130131329978 and 213130131330005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213130131330631) 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, 342652943950 + ... + 342652944571.

It is an arithmetic number, because the mean of its divisors is an integer number (53453859304716).

Almost surely, 2^{213130131330031} is an apocalyptic number.

213130131330031 is a deficient number, since it is larger than the sum of its proper divisors (685305888833).

213130131330031 is an equidigital number, since it uses as much as digits as its factorization.

213130131330031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685305888832.

The product of its (nonzero) digits is 1458, while the sum is 25.

Adding to 213130131330031 its reverse (130033131031312), we get a palindrome (343163262361343).

The spelling of 213130131330031 in words is "two hundred thirteen trillion, one hundred thirty billion, one hundred thirty-one million, three hundred thirty thousand, thirty-one".