1323400131 has 12 divisors (see below), whose sum is σ = 1911901680. Its totient is φ = 882117360.

The previous prime is 1323400109. The next prime is 1323400153. The reversal of 1323400131 is 1310043231.

1323400131 is a `hidden beast` number, since 132 + 3 + 400 + 131 = 666.

It is an interprime number because it is at equal distance from previous prime (1323400109) and next prime (1323400153).

It is not a de Polignac number, because 1323400131 - 2⁹ = 1323399619 is a prime.

It is a super-2 number, since 2×1323400131² = 3502775813461634322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1323400171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 79026 + ... + 94296.

It is an arithmetic number, because the mean of its divisors is an integer number (159325140).

Almost surely, 2^1323400131 is an apocalyptic number.

1323400131 is a deficient number, since it is larger than the sum of its proper divisors (588501549).

1323400131 is a wasteful number, since it uses less digits than its factorization.

1323400131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24906 (or 24903 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1323400131 is about 36378.5669178982. The cubic root of 1323400131 is about 1097.9023746899.

Adding to 1323400131 its reverse (1310043231), we get a palindrome (2633443362).

The spelling of 1323400131 in words is "one billion, three hundred twenty-three million, four hundred thousand, one hundred thirty-one".