111996135361 has 12 divisors (see below), whose sum is σ = 123117582672. Its totient is φ = 101037287000.

The previous prime is 111996135353. The next prime is 111996135389. The reversal of 111996135361 is 163531699111.

It is not a de Polignac number, because 111996135361 - 2³ = 111996135353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111996135311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 107875 + ... + 485416.

It is an arithmetic number, because the mean of its divisors is an integer number (10259798556).

Almost surely, 2^111996135361 is an apocalyptic number.

111996135361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

111996135361 is a deficient number, since it is larger than the sum of its proper divisors (11121447311).

111996135361 is an equidigital number, since it uses as much as digits as its factorization.

111996135361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 593564 (or 593433 counting only the distinct ones).

The product of its digits is 131220, while the sum is 46.

The spelling of 111996135361 in words is "one hundred eleven billion, nine hundred ninety-six million, one hundred thirty-five thousand, three hundred sixty-one".