131322210031 has 4 divisors (see below), whose sum is σ = 131700660552. Its totient is φ = 130943759512.

The previous prime is 131322210023. The next prime is 131322210067. The reversal of 131322210031 is 130012223131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130012223131 = 7 ⋅18573174733.

It is a cyclic number.

It is not a de Polignac number, because 131322210031 - 2³ = 131322210023 is a prime.

It is a super-2 number, since 2×131322210031² (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 = 131322209990 and 131322210008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131322217031) 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, 189224740 + ... + 189225433.

It is an arithmetic number, because the mean of its divisors is an integer number (32925165138).

Almost surely, 2^131322210031 is an apocalyptic number.

131322210031 is a deficient number, since it is larger than the sum of its proper divisors (378450521).

131322210031 is an equidigital number, since it uses as much as digits as its factorization.

131322210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378450520.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131322210031 its reverse (130012223131), we get a palindrome (261334433162).

The spelling of 131322210031 in words is "one hundred thirty-one billion, three hundred twenty-two million, two hundred ten thousand, thirty-one".