1311112222131 has 8 divisors (see below), whose sum is σ = 1795396916944. Its totient is φ = 850451171040.

The previous prime is 1311112222093. The next prime is 1311112222153. The reversal of 1311112222131 is 1312222111131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1311112222131 - 2¹⁸ = 1311111959987 is a prime.

It is a super-2 number, since 2×1311112222131² (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 = 1311112222098 and 1311112222107.

It is not an unprimeable number, because it can be changed into a prime (1311112222831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5905910800 + ... + 5905911021.

It is an arithmetic number, because the mean of its divisors is an integer number (224424614618).

Almost surely, 2^{1311112222131} is an apocalyptic number.

1311112222131 is a deficient number, since it is larger than the sum of its proper divisors (484284694813).

1311112222131 is a wasteful number, since it uses less digits than its factorization.

1311112222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11811821861.

The product of its digits is 144, while the sum is 21.

Adding to 1311112222131 its reverse (1312222111131), we get a palindrome (2623334333262).

The spelling of 1311112222131 in words is "one trillion, three hundred eleven billion, one hundred twelve million, two hundred twenty-two thousand, one hundred thirty-one".