111213130331 has 16 divisors (see below), whose sum is σ = 125984748960. Its totient is φ = 97536545280.

The previous prime is 111213130321. The next prime is 111213130333. The reversal of 111213130331 is 133031312111.

It is a de Polignac number, because none of the positive numbers 2^k-111213130331 is a prime.

It is a super-2 number, since 2×111213130331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111213130333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2802536 + ... + 2841941.

It is an arithmetic number, because the mean of its divisors is an integer number (7874046810).

Almost surely, 2^111213130331 is an apocalyptic number.

111213130331 is a deficient number, since it is larger than the sum of its proper divisors (14771618629).

111213130331 is a wasteful number, since it uses less digits than its factorization.

111213130331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5644574.

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

Adding to 111213130331 its reverse (133031312111), we get a palindrome (244244442442).

The spelling of 111213130331 in words is "one hundred eleven billion, two hundred thirteen million, one hundred thirty thousand, three hundred thirty-one".