131313220101131 has 4 divisors (see below), whose sum is σ = 131396805857064. Its totient is φ = 131229634345200.

The previous prime is 131313220101113. The next prime is 131313220101149. The reversal of 131313220101131 is 131101022313131.

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

It is an interprime number because it is at equal distance from previous prime (131313220101113) and next prime (131313220101149).

It is a cyclic number.

It is not a de Polignac number, because 131313220101131 - 2³⁴ = 131296040231947 is a prime.

It is a super-2 number, since 2×131313220101131² (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 = 131313220101097 and 131313220101106.

It is not an unprimeable number, because it can be changed into a prime (131313220121131) 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, 41792875610 + ... + 41792878751.

It is an arithmetic number, because the mean of its divisors is an integer number (32849201464266).

Almost surely, 2^{131313220101131} is an apocalyptic number.

131313220101131 is a deficient number, since it is larger than the sum of its proper divisors (83585755933).

131313220101131 is an equidigital number, since it uses as much as digits as its factorization.

131313220101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83585755932.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 131313220101131 its reverse (131101022313131), we get a palindrome (262414242414262).

The spelling of 131313220101131 in words is "one hundred thirty-one trillion, three hundred thirteen billion, two hundred twenty million, one hundred one thousand, one hundred thirty-one".