312342242043220 has 96 divisors (see below), whose sum is σ = 686188336474368. Its totient is φ = 119199372644352.

The previous prime is 312342242043193. The next prime is 312342242043259. The reversal of 312342242043220 is 22340242243213.

It is a happy number.

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, 345022212 + ... + 345926308.

It is an arithmetic number, because the mean of its divisors is an integer number (7147795171608).

Almost surely, 2^{312342242043220} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 312342242043220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (343094168237184).

312342242043220 is an abundant number, since it is smaller than the sum of its proper divisors (373846094431148).

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

312342242043220 is a wasteful number, since it uses less digits than its factorization.

312342242043220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906049 (or 906047 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 312342242043220 its reverse (22340242243213), we get a palindrome (334682484286433).

The spelling of 312342242043220 in words is "three hundred twelve trillion, three hundred forty-two billion, two hundred forty-two million, forty-three thousand, two hundred twenty".