2102013231 has 16 divisors (see below), whose sum is σ = 2880860256. Its totient is φ = 1362722816.

The previous prime is 2102013227. The next prime is 2102013239. The reversal of 2102013231 is 1323102012.

It is a cyclic number.

It is not a de Polignac number, because 2102013231 - 2² = 2102013227 is a prime.

It is a super-2 number, since 2×2102013231² = 8836919246598118722, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2102013231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102013239) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40530 + ... + 76463.

It is an arithmetic number, because the mean of its divisors is an integer number (180053766).

Almost surely, 2^2102013231 is an apocalyptic number.

2102013231 is a deficient number, since it is larger than the sum of its proper divisors (778847025).

2102013231 is a wasteful number, since it uses less digits than its factorization.

2102013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117162.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 2102013231 is about 45847.7178385141. The cubic root of 2102013231 is about 1280.9882567735.

Adding to 2102013231 its reverse (1323102012), we get a palindrome (3425115243).

The spelling of 2102013231 in words is "two billion, one hundred two million, thirteen thousand, two hundred thirty-one".