1121200957 has 2 divisors, whose sum is σ = 1121200958. Its totient is φ = 1121200956.

The previous prime is 1121200909. The next prime is 1121200991. The reversal of 1121200957 is 7590021211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 992628036 + 128572921 = 31506^2 + 11339^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121200957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121200057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560600478 + 560600479.

It is an arithmetic number, because the mean of its divisors is an integer number (560600479).

Almost surely, 2^1121200957 is an apocalyptic number.

It is an amenable number.

1121200957 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121200957 is an equidigital number, since it uses as much as digits as its factorization.

1121200957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 28.

The square root of 1121200957 is about 33484.3389810819. The cubic root of 1121200957 is about 1038.8698759988.

The spelling of 1121200957 in words is "one billion, one hundred twenty-one million, two hundred thousand, nine hundred fifty-seven".