11312013111 has 32 divisors (see below), whose sum is σ = 18024112128. Its totient is φ = 6170139360.

The previous prime is 11312013101. The next prime is 11312013169. The reversal of 11312013111 is 11131021311.

It is not a de Polignac number, because 11312013111 - 2⁵ = 11312013079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312013101) 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, 211176 + ... + 259266.

It is an arithmetic number, because the mean of its divisors is an integer number (563253504).

Almost surely, 2^11312013111 is an apocalyptic number.

11312013111 is a deficient number, since it is larger than the sum of its proper divisors (6712099017).

11312013111 is a wasteful number, since it uses less digits than its factorization.

11312013111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48611.

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

Adding to 11312013111 its reverse (11131021311), we get a palindrome (22443034422).

The spelling of 11312013111 in words is "eleven billion, three hundred twelve million, thirteen thousand, one hundred eleven".