2131002102021 has 16 divisors (see below), whose sum is σ = 3158606922240. Its totient is φ = 1269083136960.

The previous prime is 2131002101993. The next prime is 2131002102037. The reversal of 2131002102021 is 1202012001312.

It is not a de Polignac number, because 2131002102021 - 2¹¹ = 2131002099973 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131002102071) 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, 881306526 + ... + 881308943.

It is an arithmetic number, because the mean of its divisors is an integer number (197412932640).

Almost surely, 2^{2131002102021} is an apocalyptic number.

It is an amenable number.

2131002102021 is a deficient number, since it is larger than the sum of its proper divisors (1027604820219).

2131002102021 is a wasteful number, since it uses less digits than its factorization.

2131002102021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1762615516.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 2131002102021 its reverse (1202012001312), we get a palindrome (3333014103333).

The spelling of 2131002102021 in words is "two trillion, one hundred thirty-one billion, two million, one hundred two thousand, twenty-one".