2130133231021 has 2 divisors, whose sum is σ = 2130133231022. Its totient is φ = 2130133231020.

The previous prime is 2130133231001. The next prime is 2130133231027. The reversal of 2130133231021 is 1201323310312.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1899407676100 + 230725554921 = 1378190^2 + 480339^2 .

It is a cyclic number.

It is not a de Polignac number, because 2130133231021 - 2⁵ = 2130133230989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2130133230983 and 2130133231001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2130133231027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065066615510 + 1065066615511.

It is an arithmetic number, because the mean of its divisors is an integer number (1065066615511).

Almost surely, 2^{2130133231021} is an apocalyptic number.

It is an amenable number.

2130133231021 is a deficient number, since it is larger than the sum of its proper divisors (1).

2130133231021 is an equidigital number, since it uses as much as digits as its factorization.

2130133231021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2130133231021 its reverse (1201323310312), we get a palindrome (3331456541333).

The spelling of 2130133231021 in words is "two trillion, one hundred thirty billion, one hundred thirty-three million, two hundred thirty-one thousand, twenty-one".