312203021020042 has 8 divisors (see below), whose sum is σ = 477140466087396. Its totient is φ = 153156198990912.

The previous prime is 312203021020031. The next prime is 312203021020057. The reversal of 312203021020042 is 240020120302213.

It can be written as a sum of positive squares in 2 ways, for example, as 312198473001321 + 4548018721 = 17669139^2 + 67439^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 312203021019995 and 312203021020022.

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, 1472655759423 + ... + 1472655759634.

Almost surely, 2^{312203021020042} is an apocalyptic number.

312203021020042 is a deficient number, since it is larger than the sum of its proper divisors (164937445067354).

312203021020042 is a wasteful number, since it uses less digits than its factorization.

312203021020042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2945311519112.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 312203021020042 its reverse (240020120302213), we get a palindrome (552223141322255).

The spelling of 312203021020042 in words is "three hundred twelve trillion, two hundred three billion, twenty-one million, twenty thousand, forty-two".