312000340133421 has 12 divisors (see below), whose sum is σ = 450687631029948. Its totient is φ = 207990777651264.

The previous prime is 312000340133411. The next prime is 312000340133453. The reversal of 312000340133421 is 124331043000213.

It is a happy number.

312000340133421 is a `hidden beast` number, since 3 + 1 + 200 + 0 + 3 + 4 + 0 + 1 + 33 + 421 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 216382040604900 + 95618299528521 = 14709930^2 + 9778461^2 .

It is not a de Polignac number, because 312000340133421 - 2¹⁵ = 312000340100653 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312000340133401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 787216240 + ... + 787612473.

It is an arithmetic number, because the mean of its divisors is an integer number (37557302585829).

Almost surely, 2^{312000340133421} is an apocalyptic number.

It is an amenable number.

312000340133421 is a deficient number, since it is larger than the sum of its proper divisors (138687290896527).

312000340133421 is a wasteful number, since it uses less digits than its factorization.

312000340133421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1574850732 (or 1574850729 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 312000340133421 its reverse (124331043000213), we get a palindrome (436331383133634).

The spelling of 312000340133421 in words is "three hundred twelve trillion, three hundred forty million, one hundred thirty-three thousand, four hundred twenty-one".