312201430400223 has 64 divisors (see below), whose sum is σ = 572205684090880. Its totient is φ = 163824425109504.

The previous prime is 312201430400219. The next prime is 312201430400227. The reversal of 312201430400223 is 322004034102213.

312201430400223 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 0 + 1 + 4 + 30 + 400 + 223 = 666.

It is an interprime number because it is at equal distance from previous prime (312201430400219) and next prime (312201430400227).

It is not a de Polignac number, because 312201430400223 - 2² = 312201430400219 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 (312201430400227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 328712611 + ... + 329661012.

It is an arithmetic number, because the mean of its divisors is an integer number (8940713813920).

Almost surely, 2^{312201430400223} is an apocalyptic number.

312201430400223 is a deficient number, since it is larger than the sum of its proper divisors (260004253690657).

312201430400223 is a wasteful number, since it uses less digits than its factorization.

312201430400223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 658373845 (or 658373839 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 312201430400223 its reverse (322004034102213), we get a palindrome (634205464502436).

The spelling of 312201430400223 in words is "three hundred twelve trillion, two hundred one billion, four hundred thirty million, four hundred thousand, two hundred twenty-three".