1121319137 has 2 divisors, whose sum is σ = 1121319138. Its totient is φ = 1121319136.

The previous prime is 1121319113. The next prime is 1121319179. The reversal of 1121319137 is 7319131211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1085307136 + 36012001 = 32944^2 + 6001^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121319137 is a prime.

It is not a weakly prime, because it can be changed into another prime (1121319037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560659568 + 560659569.

It is an arithmetic number, because the mean of its divisors is an integer number (560659569).

Almost surely, 2^1121319137 is an apocalyptic number.

It is an amenable number.

1121319137 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121319137 is an equidigital number, since it uses as much as digits as its factorization.

1121319137 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1134, while the sum is 29.

The square root of 1121319137 is about 33486.1036401669. The cubic root of 1121319137 is about 1038.9063753518.

The spelling of 1121319137 in words is "one billion, one hundred twenty-one million, three hundred nineteen thousand, one hundred thirty-seven".