111220010131 has 2 divisors, whose sum is σ = 111220010132. Its totient is φ = 111220010130.

The previous prime is 111220010113. The next prime is 111220010357. The reversal of 111220010131 is 131010022111.

It is a happy number.

Together with previous prime (111220010113) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 111220010131 - 2²³ = 111211621523 is a prime.

It is a super-2 number, since 2×111220010131² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (111220014131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55610005065 + 55610005066.

It is an arithmetic number, because the mean of its divisors is an integer number (55610005066).

Almost surely, 2^111220010131 is an apocalyptic number.

111220010131 is a deficient number, since it is larger than the sum of its proper divisors (1).

111220010131 is an equidigital number, since it uses as much as digits as its factorization.

111220010131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111220010131 its reverse (131010022111), we get a palindrome (242230032242).

The spelling of 111220010131 in words is "one hundred eleven billion, two hundred twenty million, ten thousand, one hundred thirty-one".