1323132131381 has 2 divisors, whose sum is σ = 1323132131382. Its totient is φ = 1323132131380.

The previous prime is 1323132131261. The next prime is 1323132131393. The reversal of 1323132131381 is 1831312313231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1286883779281 + 36248352100 = 1134409^2 + 190390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1323132131381 is a prime.

It is a super-2 number, since 2×1323132131381² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323102131381) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661566065690 + 661566065691.

It is an arithmetic number, because the mean of its divisors is an integer number (661566065691).

Almost surely, 2^{1323132131381} is an apocalyptic number.

It is an amenable number.

1323132131381 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323132131381 is an equidigital number, since it uses as much as digits as its factorization.

1323132131381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7776, while the sum is 32.

The spelling of 1323132131381 in words is "one trillion, three hundred twenty-three billion, one hundred thirty-two million, one hundred thirty-one thousand, three hundred eighty-one".