11312313131 has 8 divisors (see below), whose sum is σ = 13013977344. Its totient is φ = 9632053800.

The previous prime is 11312313097. The next prime is 11312313143. The reversal of 11312313131 is 13131321311.

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

It is a cyclic number.

It is not a de Polignac number, because 11312313131 - 2¹⁰ = 11312312107 is a prime.

It is a super-2 number, since 2×11312313131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11312313151) 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, 5350085 + ... + 5352198.

It is an arithmetic number, because the mean of its divisors is an integer number (1626747168).

Almost surely, 2^11312313131 is an apocalyptic number.

11312313131 is a deficient number, since it is larger than the sum of its proper divisors (1701664213).

11312313131 is a wasteful number, since it uses less digits than its factorization.

11312313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10702441.

The product of its digits is 162, while the sum is 20.

Adding to 11312313131 its reverse (13131321311), we get a palindrome (24443634442).

The spelling of 11312313131 in words is "eleven billion, three hundred twelve million, three hundred thirteen thousand, one hundred thirty-one".