203122312313322 has 64 divisors (see below), whose sum is σ = 414948110670720. Its totient is φ = 66267353779200.

The previous prime is 203122312313317. The next prime is 203122312313341. The reversal of 203122312313322 is 223313213221302.

It is a self number, because there is not a number n which added to its sum of digits gives 203122312313322.

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, 117816672 + ... + 119528292.

It is an arithmetic number, because the mean of its divisors is an integer number (6483564229230).

Almost surely, 2^{203122312313322} is an apocalyptic number.

203122312313322 is an abundant number, since it is smaller than the sum of its proper divisors (211825798357398).

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

203122312313322 is a wasteful number, since it uses less digits than its factorization.

203122312313322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1713159.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 203122312313322 its reverse (223313213221302), we get a palindrome (426435525534624).

The spelling of 203122312313322 in words is "two hundred three trillion, one hundred twenty-two billion, three hundred twelve million, three hundred thirteen thousand, three hundred twenty-two".