13123330031 has 4 divisors (see below), whose sum is σ = 14998091472. Its totient is φ = 11248568592.

The previous prime is 13123330021. The next prime is 13123330069. The reversal of 13123330031 is 13003332131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13123330031 - 2²² = 13119135727 is a prime.

It is a super-2 number, since 2×13123330031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13123329985 and 13123330012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13123330021) 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, 937380710 + ... + 937380723.

It is an arithmetic number, because the mean of its divisors is an integer number (3749522868).

Almost surely, 2^13123330031 is an apocalyptic number.

13123330031 is a deficient number, since it is larger than the sum of its proper divisors (1874761441).

13123330031 is an equidigital number, since it uses as much as digits as its factorization.

13123330031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1874761440.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 13123330031 its reverse (13003332131), we get a palindrome (26126662162).

The spelling of 13123330031 in words is "thirteen billion, one hundred twenty-three million, three hundred thirty thousand, thirty-one".