12331645337 has 4 divisors (see below), whose sum is σ = 13452704016. Its totient is φ = 11210586660.

The previous prime is 12331645331. The next prime is 12331645343. The reversal of 12331645337 is 73354613321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12331645331) and next prime (12331645343).

It is a cyclic number.

It is not a de Polignac number, because 12331645337 - 2⁶ = 12331645273 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12331645337.

It is not an unprimeable number, because it can be changed into a prime (12331645331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 560529323 + ... + 560529344.

It is an arithmetic number, because the mean of its divisors is an integer number (3363176004).

Almost surely, 2^12331645337 is an apocalyptic number.

It is an amenable number.

12331645337 is a deficient number, since it is larger than the sum of its proper divisors (1121058679).

12331645337 is a wasteful number, since it uses less digits than its factorization.

12331645337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121058678.

The product of its digits is 136080, while the sum is 38.

The spelling of 12331645337 in words is "twelve billion, three hundred thirty-one million, six hundred forty-five thousand, three hundred thirty-seven".