1121684417 has 16 divisors (see below), whose sum is σ = 1329229440. Its totient is φ = 926120832.

The previous prime is 1121684413. The next prime is 1121684441. The reversal of 1121684417 is 7144861211.

It is not a de Polignac number, because 1121684417 - 2² = 1121684413 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1121684413) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83693 + ... + 96165.

It is an arithmetic number, because the mean of its divisors is an integer number (83076840).

Almost surely, 2^1121684417 is an apocalyptic number.

It is an amenable number.

1121684417 is a deficient number, since it is larger than the sum of its proper divisors (207545023).

1121684417 is a wasteful number, since it uses less digits than its factorization.

1121684417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12952.

The product of its digits is 10752, while the sum is 35.

The square root of 1121684417 is about 33491.5573988431. The cubic root of 1121684417 is about 1039.0191741998.

The spelling of 1121684417 in words is "one billion, one hundred twenty-one million, six hundred eighty-four thousand, four hundred seventeen".