11312131101 has 32 divisors (see below), whose sum is σ = 16206152448. Its totient is φ = 7000266240.

The previous prime is 11312131081. The next prime is 11312131139. The reversal of 11312131101 is 10113121311.

It is not a de Polignac number, because 11312131101 - 2⁵ = 11312131069 is a prime.

It is a super-2 number, since 2×11312131101² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312131151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1007961 + ... + 1019121.

It is an arithmetic number, because the mean of its divisors is an integer number (506442264).

Almost surely, 2^11312131101 is an apocalyptic number.

It is an amenable number.

11312131101 is a deficient number, since it is larger than the sum of its proper divisors (4894021347).

11312131101 is a wasteful number, since it uses less digits than its factorization.

11312131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11621.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11312131101 its reverse (10113121311), we get a palindrome (21425252412).

The spelling of 11312131101 in words is "eleven billion, three hundred twelve million, one hundred thirty-one thousand, one hundred one".