2101435057 has 2 divisors, whose sum is σ = 2101435058. Its totient is φ = 2101435056.

The previous prime is 2101435019. The next prime is 2101435079. The reversal of 2101435057 is 7505341012.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1736472241 + 364962816 = 41671^2 + 19104^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101435057 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101235057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050717528 + 1050717529.

It is an arithmetic number, because the mean of its divisors is an integer number (1050717529).

Almost surely, 2^2101435057 is an apocalyptic number.

It is an amenable number.

2101435057 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101435057 is an equidigital number, since it uses as much as digits as its factorization.

2101435057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4200, while the sum is 28.

The square root of 2101435057 is about 45841.4120310446. The cubic root of 2101435057 is about 1280.8707976302.

Adding to 2101435057 its reverse (7505341012), we get a palindrome (9606776069).

The spelling of 2101435057 in words is "two billion, one hundred one million, four hundred thirty-five thousand, fifty-seven".