12302391481 has 2 divisors, whose sum is σ = 12302391482. Its totient is φ = 12302391480.

The previous prime is 12302391443. The next prime is 12302391527. The reversal of 12302391481 is 18419320321.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12289717881 + 12673600 = 110859^2 + 3560^2 .

It is a cyclic number.

It is not a de Polignac number, because 12302391481 - 2²⁷ = 12168173753 is a prime.

It is a super-2 number, since 2×12302391481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12302391421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6151195740 + 6151195741.

It is an arithmetic number, because the mean of its divisors is an integer number (6151195741).

Almost surely, 2^12302391481 is an apocalyptic number.

It is an amenable number.

12302391481 is a deficient number, since it is larger than the sum of its proper divisors (1).

12302391481 is an equidigital number, since it uses as much as digits as its factorization.

12302391481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 12302391481 in words is "twelve billion, three hundred two million, three hundred ninety-one thousand, four hundred eighty-one".