312320322045 has 192 divisors, whose sum is σ = 600171586560. Its totient is φ = 155572005888.

The previous prime is 312320322037. The next prime is 312320322049. The reversal of 312320322045 is 540223023213.

312320322045 is a `hidden beast` number, since 3 + 12 + 320 + 322 + 0 + 4 + 5 = 666.

It is not a de Polignac number, because 312320322045 - 2³ = 312320322037 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312320322049) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 111981511 + ... + 111984299.

It is an arithmetic number, because the mean of its divisors is an integer number (3125893680).

Almost surely, 2^312320322045 is an apocalyptic number.

It is an amenable number.

312320322045 is a deficient number, since it is larger than the sum of its proper divisors (287851264515).

312320322045 is a wasteful number, since it uses less digits than its factorization.

312320322045 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2946 (or 2934 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 312320322045 its reverse (540223023213), we get a palindrome (852543345258).

The spelling of 312320322045 in words is "three hundred twelve billion, three hundred twenty million, three hundred twenty-two thousand, forty-five".