12319355891236 has 27 divisors (see below), whose sum is σ = 22157760103857. Its totient is φ = 5993073807120.

The previous prime is 12319355891131. The next prime is 12319355891261. The reversal of 12319355891236 is 63219855391321.

The square root of 12319355891236 is 3509894.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 11023528828900 + 1295827062336 = 3320170^2 + 1138344^2 .

It is a super-2 number, since 2×12319355891236² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 259708441 + ... + 259755871.

Almost surely, 2^{12319355891236} is an apocalyptic number.

12319355891236 is the 3509894-th square number.

It is an amenable number.

12319355891236 is a deficient number, since it is larger than the sum of its proper divisors (9838404212621).

12319355891236 is an frugal number, since it uses more digits than its factorization.

12319355891236 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94940 (or 47470 counting only the distinct ones).

The product of its digits is 10497600, while the sum is 58.

The spelling of 12319355891236 in words is "twelve trillion, three hundred nineteen billion, three hundred fifty-five million, eight hundred ninety-one thousand, two hundred thirty-six".