1323100132391 has 2 divisors, whose sum is σ = 1323100132392. Its totient is φ = 1323100132390.

The previous prime is 1323100132379. The next prime is 1323100132397. The reversal of 1323100132391 is 1932310013231.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1323100132391 - 2¹⁴ = 1323100116007 is a prime.

It is a super-3 number, since 3×1323100132391³ (a number of 37 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1323100132397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661550066195 + 661550066196.

It is an arithmetic number, because the mean of its divisors is an integer number (661550066196).

Almost surely, 2^{1323100132391} is an apocalyptic number.

1323100132391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323100132391 is an equidigital number, since it uses as much as digits as its factorization.

1323100132391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 1323100132391 in words is "one trillion, three hundred twenty-three billion, one hundred million, one hundred thirty-two thousand, three hundred ninety-one".