2101140997 has 2 divisors, whose sum is σ = 2101140998. Its totient is φ = 2101140996.

The previous prime is 2101140989. The next prime is 2101141019. The reversal of 2101140997 is 7990411012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1051769761 + 1049371236 = 32431^2 + 32394^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101140997 - 2³ = 2101140989 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101140397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050570498 + 1050570499.

It is an arithmetic number, because the mean of its divisors is an integer number (1050570499).

Almost surely, 2^2101140997 is an apocalyptic number.

It is an amenable number.

2101140997 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101140997 is an equidigital number, since it uses as much as digits as its factorization.

2101140997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 34.

The square root of 2101140997 is about 45838.2045568977. The cubic root of 2101140997 is about 1280.8110495014.

The spelling of 2101140997 in words is "two billion, one hundred one million, one hundred forty thousand, nine hundred ninety-seven".