2113253815 has 8 divisors (see below), whose sum is σ = 2669373360. Its totient is φ = 1601623872.

The previous prime is 2113253803. The next prime is 2113253837. The reversal of 2113253815 is 5183523112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2113253815 - 2⁵ = 2113253783 is a prime.

It is a super-2 number, since 2×2113253815² = 8931683373224108450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11122294 + ... + 11122483.

It is an arithmetic number, because the mean of its divisors is an integer number (333671670).

Almost surely, 2^2113253815 is an apocalyptic number.

2113253815 is a deficient number, since it is larger than the sum of its proper divisors (556119545).

2113253815 is a wasteful number, since it uses less digits than its factorization.

2113253815 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22244801.

The product of its digits is 7200, while the sum is 31.

The square root of 2113253815 is about 45970.1404718324. The cubic root of 2113253815 is about 1283.2675741122.

Adding to 2113253815 its reverse (5183523112), we get a palindrome (7296776927).

It can be divided in two parts, 21132 and 53815, that added together give a palindrome (74947).

The spelling of 2113253815 in words is "two billion, one hundred thirteen million, two hundred fifty-three thousand, eight hundred fifteen".