2102113031 has 8 divisors (see below), whose sum is σ = 2115908400. Its totient is φ = 2088354240.

The previous prime is 2102113003. The next prime is 2102113043. The reversal of 2102113031 is 1303112012.

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 2102113031 - 2⁶ = 2102112967 is a prime.

It is a super-2 number, since 2×2102113031² = 8837758390200013922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2102112997 and 2102113015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102113081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111305 + ... + 128813.

It is an arithmetic number, because the mean of its divisors is an integer number (264488550).

Almost surely, 2^2102113031 is an apocalyptic number.

2102113031 is a deficient number, since it is larger than the sum of its proper divisors (13795369).

2102113031 is a wasteful number, since it uses less digits than its factorization.

2102113031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18289.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 2102113031 is about 45848.8062112854. The cubic root of 2102113031 is about 1281.0085294979.

Adding to 2102113031 its reverse (1303112012), we get a palindrome (3405225043).

The spelling of 2102113031 in words is "two billion, one hundred two million, one hundred thirteen thousand, thirty-one".