2102000204131 has 4 divisors (see below), whose sum is σ = 2102155656552. Its totient is φ = 2101844751712.

The previous prime is 2102000204123. The next prime is 2102000204141. The reversal of 2102000204131 is 1314020002012.

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 2102000204131 - 2³ = 2102000204123 is a prime.

It is a super-2 number, since 2×2102000204131² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2102000204141) 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, 77705926 + ... + 77732971.

It is an arithmetic number, because the mean of its divisors is an integer number (525538914138).

Almost surely, 2^{2102000204131} is an apocalyptic number.

2102000204131 is a deficient number, since it is larger than the sum of its proper divisors (155452421).

2102000204131 is a wasteful number, since it uses less digits than its factorization.

2102000204131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 155452420.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 2102000204131 its reverse (1314020002012), we get a palindrome (3416020206143).

The spelling of 2102000204131 in words is "two trillion, one hundred two billion, two hundred four thousand, one hundred thirty-one".