312211123401 has 8 divisors (see below), whose sum is σ = 416290005504. Its totient is φ = 208136495120.

The previous prime is 312211123361. The next prime is 312211123447. The reversal of 312211123401 is 104321112213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312211123401 - 2⁶ = 312211123337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (312211121401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 888066 + ... + 1188731.

It is an arithmetic number, because the mean of its divisors is an integer number (52036250688).

Almost surely, 2^312211123401 is an apocalyptic number.

It is an amenable number.

312211123401 is a deficient number, since it is larger than the sum of its proper divisors (104078882103).

312211123401 is a wasteful number, since it uses less digits than its factorization.

312211123401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2126911.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 312211123401 its reverse (104321112213), we get a palindrome (416532235614).

The spelling of 312211123401 in words is "three hundred twelve billion, two hundred eleven million, one hundred twenty-three thousand, four hundred one".