2100131032021 has 32 divisors (see below), whose sum is σ = 2378226614400. Its totient is φ = 1837029600000.

The previous prime is 2100131032003. The next prime is 2100131032073. The reversal of 2100131032021 is 1202301310012.

It is a cyclic number.

It is not a de Polignac number, because 2100131032021 - 2⁷ = 2100131031893 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2100131031986 and 2100131032004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2100131032091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 113812846 + ... + 113831296.

It is an arithmetic number, because the mean of its divisors is an integer number (74319581700).

Almost surely, 2^{2100131032021} is an apocalyptic number.

It is an amenable number.

2100131032021 is a deficient number, since it is larger than the sum of its proper divisors (278095582379).

2100131032021 is a wasteful number, since it uses less digits than its factorization.

2100131032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19701.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2100131032021 its reverse (1202301310012), we get a palindrome (3302432342033).

The spelling of 2100131032021 in words is "two trillion, one hundred billion, one hundred thirty-one million, thirty-two thousand, twenty-one".