2102340056 has 16 divisors (see below), whose sum is σ = 3962528640. Its totient is φ = 1045665760.

The previous prime is 2102340043. The next prime is 2102340059. The reversal of 2102340056 is 6500432012.

It is a super-2 number, since 2×2102340056² = 8839667422124166272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102340059) 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, 686411 + ... + 689466.

It is an arithmetic number, because the mean of its divisors is an integer number (247658040).

Almost surely, 2^2102340056 is an apocalyptic number.

It is an amenable number.

2102340056 is a deficient number, since it is larger than the sum of its proper divisors (1860188584).

2102340056 is a wasteful number, since it uses less digits than its factorization.

2102340056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1376074 (or 1376070 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 23.

The square root of 2102340056 is about 45851.2819450013. The cubic root of 2102340056 is about 1281.0546434935.

Adding to 2102340056 its reverse (6500432012), we get a palindrome (8602772068).

The spelling of 2102340056 in words is "two billion, one hundred two million, three hundred forty thousand, fifty-six".