1210131331131 has 4 divisors (see below), whose sum is σ = 1613508441512. Its totient is φ = 806754220752.

The previous prime is 1210131331049. The next prime is 1210131331177. The reversal of 1210131331131 is 1311331310121.

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

It is not a de Polignac number, because 1210131331131 - 2⁹ = 1210131330619 is a prime.

It is a super-2 number, since 2×1210131331131² (a number of 25 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 = 1210131331098 and 1210131331107.

It is not an unprimeable number, because it can be changed into a prime (1210131335131) 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, 201688555186 + ... + 201688555191.

It is an arithmetic number, because the mean of its divisors is an integer number (403377110378).

Almost surely, 2^{1210131331131} is an apocalyptic number.

1210131331131 is a deficient number, since it is larger than the sum of its proper divisors (403377110381).

1210131331131 is an equidigital number, since it uses as much as digits as its factorization.

1210131331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403377110380.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 1210131331131 its reverse (1311331310121), we get a palindrome (2521462641252).

The spelling of 1210131331131 in words is "one trillion, two hundred ten billion, one hundred thirty-one million, three hundred thirty-one thousand, one hundred thirty-one".