312142133000421 has 24 divisors (see below), whose sum is σ = 455451416600544. Its totient is φ = 205982208597600.

The previous prime is 312142133000393. The next prime is 312142133000443. The reversal of 312142133000421 is 124000331241213.

312142133000421 is a `hidden beast` number, since 3 + 1 + 21 + 4 + 213 + 3 + 0 + 0 + 0 + 421 = 666.

It is not a de Polignac number, because 312142133000421 - 2⁹ = 312142132999909 is a prime.

It is a super-2 number, since 2×312142133000421² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312142133001421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39912391 + ... + 47088036.

It is an arithmetic number, because the mean of its divisors is an integer number (18977142358356).

Almost surely, 2^{312142133000421} is an apocalyptic number.

It is an amenable number.

312142133000421 is a deficient number, since it is larger than the sum of its proper divisors (143309283600123).

312142133000421 is a wasteful number, since it uses less digits than its factorization.

312142133000421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87004481 (or 87004478 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

Adding to 312142133000421 its reverse (124000331241213), we get a palindrome (436142464241634).

The spelling of 312142133000421 in words is "three hundred twelve trillion, one hundred forty-two billion, one hundred thirty-three million, four hundred twenty-one", and thus it is an aban number.