312122140203342 has 64 divisors (see below), whose sum is σ = 714158433792000. Its totient is φ = 89085708645120.

The previous prime is 312122140203329. The next prime is 312122140203373. The reversal of 312122140203342 is 243302041221213.

It is a happy number.

It is a super-2 number, since 2×312122140203342² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3523216384 + ... + 3523304972.

It is an arithmetic number, because the mean of its divisors is an integer number (11158725528000).

Almost surely, 2^{312122140203342} is an apocalyptic number.

312122140203342 is an abundant number, since it is smaller than the sum of its proper divisors (402036293588658).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312122140203342 is a wasteful number, since it uses less digits than its factorization.

312122140203342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 174241.

The product of its (nonzero) digits is 13824, while the sum is 30.

Adding to 312122140203342 its reverse (243302041221213), we get a palindrome (555424181424555).

The spelling of 312122140203342 in words is "three hundred twelve trillion, one hundred twenty-two billion, one hundred forty million, two hundred three thousand, three hundred forty-two".