312204030345 has 40 divisors (see below), whose sum is σ = 559706273280. Its totient is φ = 166493452320.

The previous prime is 312204030253. The next prime is 312204030353. The reversal of 312204030345 is 543030402213.

312204030345 is a `hidden beast` number, since 3 + 1 + 220 + 403 + 0 + 34 + 5 = 666.

It is not a de Polignac number, because 312204030345 - 2¹⁰ = 312204029321 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5373400 + ... + 5431190.

It is an arithmetic number, because the mean of its divisors is an integer number (13992656832).

Almost surely, 2^312204030345 is an apocalyptic number.

It is an amenable number.

312204030345 is a deficient number, since it is larger than the sum of its proper divisors (247502242935).

312204030345 is a wasteful number, since it uses less digits than its factorization.

312204030345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71147 (or 71138 counting only the distinct ones).

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

Adding to 312204030345 its reverse (543030402213), we get a palindrome (855234432558).

The spelling of 312204030345 in words is "three hundred twelve billion, two hundred four million, thirty thousand, three hundred forty-five".