2131132604621 has 2 divisors, whose sum is σ = 2131132604622. Its totient is φ = 2131132604620.

The previous prime is 2131132604563. The next prime is 2131132604681. The reversal of 2131132604621 is 1264062311312.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2038938391396 + 92194213225 = 1427914^2 + 303635^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131132604621 - 2¹⁰ = 2131132603597 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2131132604681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1065566302310 + 1065566302311.

It is an arithmetic number, because the mean of its divisors is an integer number (1065566302311).

Almost surely, 2^{2131132604621} is an apocalyptic number.

It is an amenable number.

2131132604621 is a deficient number, since it is larger than the sum of its proper divisors (1).

2131132604621 is an equidigital number, since it uses as much as digits as its factorization.

2131132604621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10368, while the sum is 32.

Adding to 2131132604621 its reverse (1264062311312), we get a palindrome (3395194915933).

The spelling of 2131132604621 in words is "two trillion, one hundred thirty-one billion, one hundred thirty-two million, six hundred four thousand, six hundred twenty-one".