111213301131 has 32 divisors (see below), whose sum is σ = 168129239040. Its totient is φ = 72635940000.

The previous prime is 111213301123. The next prime is 111213301159. The reversal of 111213301131 is 131103312111.

It is not a de Polignac number, because 111213301131 - 2³ = 111213301123 is a prime.

It is a super-2 number, since 2×111213301131² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (111213308131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 278886 + ... + 547908.

It is an arithmetic number, because the mean of its divisors is an integer number (5254038720).

Almost surely, 2^111213301131 is an apocalyptic number.

111213301131 is a deficient number, since it is larger than the sum of its proper divisors (56915937909).

111213301131 is a wasteful number, since it uses less digits than its factorization.

111213301131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 269344 (or 269338 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 111213301131 its reverse (131103312111), we get a palindrome (242316613242).

The spelling of 111213301131 in words is "one hundred eleven billion, two hundred thirteen million, three hundred one thousand, one hundred thirty-one".