312203020223420 has 48 divisors (see below), whose sum is σ = 686793827458368. Its totient is φ = 118986798120960.

The previous prime is 312203020223317. The next prime is 312203020223447. The reversal of 312203020223420 is 24322020302213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312203020223420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1320314111 + ... + 1320550550.

It is an arithmetic number, because the mean of its divisors is an integer number (14308204738716).

Almost surely, 2^{312203020223420} is an apocalyptic number.

It is an amenable number.

312203020223420 is an abundant number, since it is smaller than the sum of its proper divisors (374590807234948).

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

312203020223420 is a wasteful number, since it uses less digits than its factorization.

312203020223420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2640864950 (or 2640864948 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 312203020223420 its reverse (24322020302213), we get a palindrome (336525040525633).

The spelling of 312203020223420 in words is "three hundred twelve trillion, two hundred three billion, twenty million, two hundred twenty-three thousand, four hundred twenty".