111242400131 has 8 divisors (see below), whose sum is σ = 113182824960. Its totient is φ = 109303807432.

The previous prime is 111242400121. The next prime is 111242400163. The reversal of 111242400131 is 131004242111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111242400131 - 2⁶ = 111242400067 is a prime.

It is a super-2 number, since 2×111242400131² (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 (111242400121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335255 + ... + 578688.

It is an arithmetic number, because the mean of its divisors is an integer number (14147853120).

Almost surely, 2^111242400131 is an apocalyptic number.

111242400131 is a deficient number, since it is larger than the sum of its proper divisors (1940424829).

111242400131 is an equidigital number, since it uses as much as digits as its factorization.

111242400131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 916065.

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 111242400131 its reverse (131004242111), we get a palindrome (242246642242).

The spelling of 111242400131 in words is "one hundred eleven billion, two hundred forty-two million, four hundred thousand, one hundred thirty-one".