12232691978151 has 4 divisors (see below), whose sum is σ = 16310255970872. Its totient is φ = 8155127985432.

The previous prime is 12232691978141. The next prime is 12232691978173. The reversal of 12232691978151 is 15187919623221.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 12232691978151 - 2¹³ = 12232691969959 is a prime.

It is a super-2 number, since 2×12232691978151² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232691978091 and 12232691978100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12232691978141) 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 in 3 ways as a sum of consecutive naturals, for example, 2038781996356 + ... + 2038781996361.

It is an arithmetic number, because the mean of its divisors is an integer number (4077563992718).

Almost surely, 2^{12232691978151} is an apocalyptic number.

12232691978151 is a deficient number, since it is larger than the sum of its proper divisors (4077563992721).

12232691978151 is an equidigital number, since it uses as much as digits as its factorization.

12232691978151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4077563992720.

The product of its digits is 3265920, while the sum is 57.

The spelling of 12232691978151 in words is "twelve trillion, two hundred thirty-two billion, six hundred ninety-one million, nine hundred seventy-eight thousand, one hundred fifty-one".