13212300031 has 4 divisors (see below), whose sum is σ = 15099771472. Its totient is φ = 11324828592.

The previous prime is 13212299999. The next prime is 13212300071. The reversal of 13212300031 is 13000321231.

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

It is not a de Polignac number, because 13212300031 - 2⁵ = 13212299999 is a prime.

It is a super-2 number, since 2×13212300031² (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 = 13212299978 and 13212300014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212300071) 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, 943735710 + ... + 943735723.

It is an arithmetic number, because the mean of its divisors is an integer number (3774942868).

Almost surely, 2^13212300031 is an apocalyptic number.

13212300031 is a deficient number, since it is larger than the sum of its proper divisors (1887471441).

13212300031 is an equidigital number, since it uses as much as digits as its factorization.

13212300031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1887471440.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13212300031 its reverse (13000321231), we get a palindrome (26212621262).

The spelling of 13212300031 in words is "thirteen billion, two hundred twelve million, three hundred thousand, thirty-one".