131330220031 has 4 divisors (see below), whose sum is σ = 131758006072. Its totient is φ = 130902433992.

The previous prime is 131330220019. The next prime is 131330220061. The reversal of 131330220031 is 130022033131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130022033131 = 4423 ⋅29396797.

It is a cyclic number.

It is not a de Polignac number, because 131330220031 - 2¹⁹ = 131329695743 is a prime.

It is a super-2 number, since 2×131330220031² (a number of 23 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 = 131330219990 and 131330220008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131330220061) 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, 213892560 + ... + 213893173.

It is an arithmetic number, because the mean of its divisors is an integer number (32939501518).

Almost surely, 2^131330220031 is an apocalyptic number.

131330220031 is a deficient number, since it is larger than the sum of its proper divisors (427786041).

131330220031 is an equidigital number, since it uses as much as digits as its factorization.

131330220031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 427786040.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 131330220031 its reverse (130022033131), we get a palindrome (261352253162).

The spelling of 131330220031 in words is "one hundred thirty-one billion, three hundred thirty million, two hundred twenty thousand, thirty-one".