112137073721 has 4 divisors (see below), whose sum is σ = 112763538000. Its totient is φ = 111510609444.

The previous prime is 112137073673. The next prime is 112137073787. The reversal of 112137073721 is 127370731211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 127370731211 = 229157 ⋅555823.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112137073721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112137073121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 313231871 + ... + 313232228.

It is an arithmetic number, because the mean of its divisors is an integer number (28190884500).

Almost surely, 2^112137073721 is an apocalyptic number.

It is an amenable number.

112137073721 is a deficient number, since it is larger than the sum of its proper divisors (626464279).

112137073721 is an equidigital number, since it uses as much as digits as its factorization.

112137073721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 626464278.

The product of its (nonzero) digits is 12348, while the sum is 35.

The spelling of 112137073721 in words is "one hundred twelve billion, one hundred thirty-seven million, seventy-three thousand, seven hundred twenty-one".