312211325120 has 56 divisors (see below), whose sum is σ = 775777289184. Its totient is φ = 119454765056.

The previous prime is 312211325119. The next prime is 312211325123. The reversal of 312211325120 is 21523112213.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (312211325123) 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, 21202649 + ... + 21217368.

Almost surely, 2^312211325120 is an apocalyptic number.

It is an amenable number.

312211325120 is an abundant number, since it is smaller than the sum of its proper divisors (463565964064).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312211325120 is a wasteful number, since it uses less digits than its factorization.

312211325120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42420057 (or 42420047 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 312211325120 its reverse (21523112213), we get a palindrome (333734437333).

The spelling of 312211325120 in words is "three hundred twelve billion, two hundred eleven million, three hundred twenty-five thousand, one hundred twenty".