1312023321323 has 16 divisors (see below), whose sum is σ = 1622524243200. Its totient is φ = 1043051294880.

The previous prime is 1312023321269. The next prime is 1312023321353. The reversal of 1312023321323 is 3231233202131.

It is a cyclic number.

It is not a de Polignac number, because 1312023321323 - 2¹⁰ = 1312023320299 is a prime.

It is a super-2 number, since 2×1312023321323² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1312023321292 and 1312023321301.

It is not an unprimeable number, because it can be changed into a prime (1312023321353) 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, 241444343 + ... + 241449776.

It is an arithmetic number, because the mean of its divisors is an integer number (101407765200).

Almost surely, 2^{1312023321323} is an apocalyptic number.

1312023321323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1312023321323 is a deficient number, since it is larger than the sum of its proper divisors (310500921877).

1312023321323 is a wasteful number, since it uses less digits than its factorization.

1312023321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482894162.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 1312023321323 its reverse (3231233202131), we get a palindrome (4543256523454).

The spelling of 1312023321323 in words is "one trillion, three hundred twelve billion, twenty-three million, three hundred twenty-one thousand, three hundred twenty-three".