2102113331 has 4 divisors (see below), whose sum is σ = 2105695032. Its totient is φ = 2098531632.

The previous prime is 2102113319. The next prime is 2102113357. The reversal of 2102113331 is 1333112012.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2102113331 - 2²² = 2097919027 is a prime.

It is a super-2 number, since 2×2102113331² = 8837760912735831122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102110331) 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, 1789970 + ... + 1791143.

It is an arithmetic number, because the mean of its divisors is an integer number (526423758).

Almost surely, 2^2102113331 is an apocalyptic number.

2102113331 is a deficient number, since it is larger than the sum of its proper divisors (3581701).

2102113331 is an equidigital number, since it uses as much as digits as its factorization.

2102113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3581700.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2102113331 is about 45848.8094829081. The cubic root of 2102113331 is about 1281.0085904370.

Adding to 2102113331 its reverse (1333112012), we get a palindrome (3435225343).

The spelling of 2102113331 in words is "two billion, one hundred two million, one hundred thirteen thousand, three hundred thirty-one".