1323231110031 has 16 divisors (see below), whose sum is σ = 1772142375168. Its totient is φ = 878240716800.

The previous prime is 1323231110011. The next prime is 1323231110053. The reversal of 1323231110031 is 1300111323231.

It is a happy number.

It is not a de Polignac number, because 1323231110031 - 2³⁴ = 1306051240847 is a prime.

It is a super-2 number, since 2×1323231110031² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323231110011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 943036 + ... + 1880366.

It is an arithmetic number, because the mean of its divisors is an integer number (110758898448).

Almost surely, 2^{1323231110031} is an apocalyptic number.

1323231110031 is a deficient number, since it is larger than the sum of its proper divisors (448911265137).

1323231110031 is a wasteful number, since it uses less digits than its factorization.

1323231110031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 939422.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 1323231110031 its reverse (1300111323231), we get a palindrome (2623342433262).

The spelling of 1323231110031 in words is "one trillion, three hundred twenty-three billion, two hundred thirty-one million, one hundred ten thousand, thirty-one".