312140504210402 has 32 divisors (see below), whose sum is σ = 548158633182720. Its totient is φ = 130509457873920.

The previous prime is 312140504210401. The next prime is 312140504210429. The reversal of 312140504210402 is 204012405041213.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (312140504210401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28824599 + ... + 38146277.

It is an arithmetic number, because the mean of its divisors is an integer number (17129957286960).

Almost surely, 2^{312140504210402} is an apocalyptic number.

312140504210402 is a deficient number, since it is larger than the sum of its proper divisors (236018128972318).

312140504210402 is a wasteful number, since it uses less digits than its factorization.

312140504210402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9380066.

The product of its (nonzero) digits is 7680, while the sum is 29.

Adding to 312140504210402 its reverse (204012405041213), we get a palindrome (516152909251615).

The spelling of 312140504210402 in words is "three hundred twelve trillion, one hundred forty billion, five hundred four million, two hundred ten thousand, four hundred two".