2113436057 has 4 divisors (see below), whose sum is σ = 2122746576. Its totient is φ = 2104125540.

The previous prime is 2113436027. The next prime is 2113436071. The reversal of 2113436057 is 7506343112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2113436057 - 2²⁰ = 2112387481 is a prime.

It is a super-2 number, since 2×2113436057² = 8933223934055414498, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2113436027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654919 + ... + 4655372.

It is an arithmetic number, because the mean of its divisors is an integer number (530686644).

Almost surely, 2^2113436057 is an apocalyptic number.

It is an amenable number.

2113436057 is a deficient number, since it is larger than the sum of its proper divisors (9310519).

2113436057 is an equidigital number, since it uses as much as digits as its factorization.

2113436057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9310518.

The product of its (nonzero) digits is 15120, while the sum is 32.

The square root of 2113436057 is about 45972.1226070757. The cubic root of 2113436057 is about 1283.3044617031.

Adding to 2113436057 its reverse (7506343112), we get a palindrome (9619779169).

The spelling of 2113436057 in words is "two billion, one hundred thirteen million, four hundred thirty-six thousand, fifty-seven".