12320554031 has 2 divisors, whose sum is σ = 12320554032. Its totient is φ = 12320554030.

The previous prime is 12320554027. The next prime is 12320554067. The reversal of 12320554031 is 13045502321.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12320554031 - 2² = 12320554027 is a prime.

It is a super-2 number, since 2×12320554031² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12320554021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160277015 + 6160277016.

It is an arithmetic number, because the mean of its divisors is an integer number (6160277016).

Almost surely, 2^12320554031 is an apocalyptic number.

12320554031 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320554031 is an equidigital number, since it uses as much as digits as its factorization.

12320554031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3600, while the sum is 26.

The spelling of 12320554031 in words is "twelve billion, three hundred twenty million, five hundred fifty-four thousand, thirty-one".