12320377492 has 36 divisors (see below), whose sum is σ = 22822273908. Its totient is φ = 5815996800.

The previous prime is 12320377441. The next prime is 12320377493. The reversal of 12320377492 is 29477302321.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 5843990916 + 6476386576 = 76446^2 + 80476^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320377493) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 118518 + ... + 196690.

It is an arithmetic number, because the mean of its divisors is an integer number (633952053).

Almost surely, 2^12320377492 is an apocalyptic number.

It is an amenable number.

12320377492 is a deficient number, since it is larger than the sum of its proper divisors (10501896416).

12320377492 is a wasteful number, since it uses less digits than its factorization.

12320377492 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78280 (or 78247 counting only the distinct ones).

The product of its (nonzero) digits is 127008, while the sum is 40.

The spelling of 12320377492 in words is "twelve billion, three hundred twenty million, three hundred seventy-seven thousand, four hundred ninety-two".