2102203131 has 16 divisors (see below), whose sum is σ = 3216768000. Its totient is φ = 1196229888.

The previous prime is 2102203091. The next prime is 2102203139. The reversal of 2102203131 is 1313022012.

It is not a de Polignac number, because 2102203131 - 2⁶ = 2102203067 is a prime.

It is a super-2 number, since 2×2102203131² = 8838516007972406322, 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 2102203131.

It is not an unprimeable number, because it can be changed into a prime (2102203139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 204406 + ... + 214443.

It is an arithmetic number, because the mean of its divisors is an integer number (201048000).

Almost surely, 2^2102203131 is an apocalyptic number.

2102203131 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

2102203131 is a deficient number, since it is larger than the sum of its proper divisors (1114564869).

2102203131 is a wasteful number, since it uses less digits than its factorization.

2102203131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419098.

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

The square root of 2102203131 is about 45849.7887781394. The cubic root of 2102203131 is about 1281.0268312762.

Adding to 2102203131 its reverse (1313022012), we get a palindrome (3415225143).

The spelling of 2102203131 in words is "two billion, one hundred two million, two hundred three thousand, one hundred thirty-one".