1121642317 has 4 divisors (see below), whose sum is σ = 1121772960. Its totient is φ = 1121511676.

The previous prime is 1121642297. The next prime is 1121642351. The reversal of 1121642317 is 7132461211.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121642317 is a prime.

It is a super-3 number, since 3×1121642317³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121642387) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51463 + ... + 69940.

It is an arithmetic number, because the mean of its divisors is an integer number (280443240).

Almost surely, 2^1121642317 is an apocalyptic number.

It is an amenable number.

1121642317 is a deficient number, since it is larger than the sum of its proper divisors (130643).

1121642317 is an equidigital number, since it uses as much as digits as its factorization.

1121642317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130642.

The product of its digits is 2016, while the sum is 28.

The square root of 1121642317 is about 33490.9288763390. The cubic root of 1121642317 is about 1039.0061749242.

It can be divided in two parts, 112164 and 2317, that added together give a triangular number (114481 = T₄₇₈).

The spelling of 1121642317 in words is "one billion, one hundred twenty-one million, six hundred forty-two thousand, three hundred seventeen".