312820391122 has 16 divisors (see below), whose sum is σ = 473163374592. Its totient is φ = 155100506400.

The previous prime is 312820391083. The next prime is 312820391123. The reversal of 312820391122 is 221193028213.

It is not an unprimeable number, because it can be changed into a prime (312820391123) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197247 + ... + 815197.

It is an arithmetic number, because the mean of its divisors is an integer number (29572710912).

Almost surely, 2^312820391122 is an apocalyptic number.

312820391122 is a deficient number, since it is larger than the sum of its proper divisors (160342983470).

312820391122 is a wasteful number, since it uses less digits than its factorization.

312820391122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 620073.

The product of its (nonzero) digits is 10368, while the sum is 34.

The spelling of 312820391122 in words is "three hundred twelve billion, eight hundred twenty million, three hundred ninety-one thousand, one hundred twenty-two".