2111502997 has 2 divisors, whose sum is σ = 2111502998. Its totient is φ = 2111502996.

The previous prime is 2111502977. The next prime is 2111503007. The reversal of 2111502997 is 7992051112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2063975761 + 47527236 = 45431^2 + 6894^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2111502997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2111502937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1055751498 + 1055751499.

It is an arithmetic number, because the mean of its divisors is an integer number (1055751499).

Almost surely, 2^2111502997 is an apocalyptic number.

It is an amenable number.

2111502997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2111502997 is an equidigital number, since it uses as much as digits as its factorization.

2111502997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11340, while the sum is 37.

The square root of 2111502997 is about 45951.0935343219. The cubic root of 2111502997 is about 1282.9130830559.

The spelling of 2111502997 in words is "two billion, one hundred eleven million, five hundred two thousand, nine hundred ninety-seven".