2131343110100 has 36 divisors (see below), whose sum is σ = 4636548338268. Its totient is φ = 850411200000.

The previous prime is 2131343110079. The next prime is 2131343110111. The reversal of 2131343110100 is 10113431312.

It can be written as a sum of positive squares in 6 ways, for example, as 65517569296 + 2065825540804 = 255964^2 + 1437298^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 26535251 + ... + 26615450.

Almost surely, 2^{2131343110100} is an apocalyptic number.

2131343110100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2131343110100 is an abundant number, since it is smaller than the sum of its proper divisors (2505205228168).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131343110100 is a wasteful number, since it uses less digits than its factorization.

2131343110100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53151116 (or 53151109 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 2131343110100 its reverse (10113431312), we get a palindrome (2141456541412).

The spelling of 2131343110100 in words is "two trillion, one hundred thirty-one billion, three hundred forty-three million, one hundred ten thousand, one hundred".