13123233031 has 4 divisors (see below), whose sum is σ = 13126114864. Its totient is φ = 13120351200.

The previous prime is 13123233023. The next prime is 13123233037. The reversal of 13123233031 is 13033232131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13033232131 = 3581 ⋅3639551.

It is a cyclic number.

It is not a de Polignac number, because 13123233031 - 2³ = 13123233023 is a prime.

It is a super-2 number, since 2×13123233031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13123232993 and 13123233011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123233037) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1434075 + ... + 1443196.

It is an arithmetic number, because the mean of its divisors is an integer number (3281528716).

Almost surely, 2^13123233031 is an apocalyptic number.

13123233031 is a deficient number, since it is larger than the sum of its proper divisors (2881833).

13123233031 is an equidigital number, since it uses as much as digits as its factorization.

13123233031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2881832.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 13123233031 its reverse (13033232131), we get a palindrome (26156465162).

The spelling of 13123233031 in words is "thirteen billion, one hundred twenty-three million, two hundred thirty-three thousand, thirty-one".