1126317121 has 4 divisors (see below), whose sum is σ = 1127070000. Its totient is φ = 1125564244.

The previous prime is 1126317083. The next prime is 1126317193. The reversal of 1126317121 is 1217136211.

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: 1217136211 = 487 ⋅2499253.

It is a cyclic number.

It is not a de Polignac number, because 1126317121 - 2²⁷ = 992099393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1126317721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 374191 + ... + 377188.

It is an arithmetic number, because the mean of its divisors is an integer number (281767500).

Almost surely, 2^1126317121 is an apocalyptic number.

It is an amenable number.

1126317121 is a deficient number, since it is larger than the sum of its proper divisors (752879).

1126317121 is an equidigital number, since it uses as much as digits as its factorization.

1126317121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752878.

The product of its digits is 504, while the sum is 25.

The square root of 1126317121 is about 33560.6483995765. The cubic root of 1126317121 is about 1040.4476379824.

The spelling of 1126317121 in words is "one billion, one hundred twenty-six million, three hundred seventeen thousand, one hundred twenty-one".