1011120997 has 2 divisors, whose sum is σ = 1011120998. Its totient is φ = 1011120996.

The previous prime is 1011120991. The next prime is 1011121021. The reversal of 1011120997 is 7990211101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 971506561 + 39614436 = 31169^2 + 6294^2 .

It is a cyclic number.

It is not a de Polignac number, because 1011120997 - 2¹¹ = 1011118949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011120991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505560498 + 505560499.

It is an arithmetic number, because the mean of its divisors is an integer number (505560499).

Almost surely, 2^1011120997 is an apocalyptic number.

It is an amenable number.

1011120997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011120997 is an equidigital number, since it uses as much as digits as its factorization.

1011120997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1134, while the sum is 31.

The square root of 1011120997 is about 31798.1288285962. The cubic root of 1011120997 is about 1003.6933414357.

The spelling of 1011120997 in words is "one billion, eleven million, one hundred twenty thousand, nine hundred ninety-seven".