312001142020402 has 8 divisors (see below), whose sum is σ = 473260159244700. Its totient is φ = 154247755605504.

The previous prime is 312001142020391. The next prime is 312001142020439. The reversal of 312001142020402 is 204020241100213.

It can be written as a sum of positive squares in 2 ways, for example, as 311938861327681 + 62280692721 = 17661791^2 + 249561^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 876407702127 + ... + 876407702482.

Almost surely, 2^{312001142020402} is an apocalyptic number.

312001142020402 is a deficient number, since it is larger than the sum of its proper divisors (161259017224298).

312001142020402 is a wasteful number, since it uses less digits than its factorization.

312001142020402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1752815404700.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 312001142020402 its reverse (204020241100213), we get a palindrome (516021383120615).

The spelling of 312001142020402 in words is "three hundred twelve trillion, one billion, one hundred forty-two million, twenty thousand, four hundred two".