1121879057 has 16 divisors (see below), whose sum is σ = 1258854912. Its totient is φ = 992770560.

The previous prime is 1121879053. The next prime is 1121879063. The reversal of 1121879057 is 7509781211.

It is a cyclic number.

It is not a de Polignac number, because 1121879057 - 2² = 1121879053 is a prime.

It is a super-2 number, since 2×1121879057² = 2517225237070418498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1121879051) 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, 30113 + ... + 56129.

It is an arithmetic number, because the mean of its divisors is an integer number (78678432).

Almost surely, 2^1121879057 is an apocalyptic number.

It is an amenable number.

1121879057 is a deficient number, since it is larger than the sum of its proper divisors (136975855).

1121879057 is a wasteful number, since it uses less digits than its factorization.

1121879057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26168.

The product of its (nonzero) digits is 35280, while the sum is 41.

The square root of 1121879057 is about 33494.4630797390. The cubic root of 1121879057 is about 1039.0792692356.

The spelling of 1121879057 in words is "one billion, one hundred twenty-one million, eight hundred seventy-nine thousand, fifty-seven".