12431331193 has 2 divisors, whose sum is σ = 12431331194. Its totient is φ = 12431331192.

The previous prime is 12431331131. The next prime is 12431331239. The reversal of 12431331193 is 39113313421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10413794304 + 2017536889 = 102048^2 + 44917^2 .

It is a cyclic number.

It is not a de Polignac number, because 12431331193 - 2¹⁷ = 12431200121 is a prime.

It is a super-3 number, since 3×12431331193³ (a number of 31 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (12431331103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6215665596 + 6215665597.

It is an arithmetic number, because the mean of its divisors is an integer number (6215665597).

Almost surely, 2^12431331193 is an apocalyptic number.

It is an amenable number.

12431331193 is a deficient number, since it is larger than the sum of its proper divisors (1).

12431331193 is an equidigital number, since it uses as much as digits as its factorization.

12431331193 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5832, while the sum is 31.

The spelling of 12431331193 in words is "twelve billion, four hundred thirty-one million, three hundred thirty-one thousand, one hundred ninety-three".