1112401129 has 4 divisors (see below), whose sum is σ = 1271315584. Its totient is φ = 953486676.

The previous prime is 1112401097. The next prime is 1112401159. The reversal of 1112401129 is 9211042111.

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: 9211042111 = 113 ⋅81513647.

It is a cyclic number.

It is not a de Polignac number, because 1112401129 - 2⁵ = 1112401097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1112401159) 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, 79457217 + ... + 79457230.

It is an arithmetic number, because the mean of its divisors is an integer number (317828896).

Almost surely, 2^1112401129 is an apocalyptic number.

It is an amenable number.

1112401129 is a deficient number, since it is larger than the sum of its proper divisors (158914455).

1112401129 is an equidigital number, since it uses as much as digits as its factorization.

1112401129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158914454.

The product of its (nonzero) digits is 144, while the sum is 22.

The square root of 1112401129 is about 33352.6779884315. The cubic root of 1112401129 is about 1036.1448521764.

The spelling of 1112401129 in words is "one billion, one hundred twelve million, four hundred one thousand, one hundred twenty-nine".