313123332220 has 48 divisors (see below), whose sum is σ = 698292836640. Its totient is φ = 117607182336.

The previous prime is 313123332211. The next prime is 313123332271. The reversal of 313123332220 is 22233321313.

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, 3603117 + ... + 3688996.

It is an arithmetic number, because the mean of its divisors is an integer number (14547767430).

Almost surely, 2^313123332220 is an apocalyptic number.

It is an amenable number.

313123332220 is an abundant number, since it is smaller than the sum of its proper divisors (385169504420).

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

313123332220 is a wasteful number, since it uses less digits than its factorization.

313123332220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7292254 (or 7292252 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 313123332220 its reverse (22233321313), we get a palindrome (335356653533).

The spelling of 313123332220 in words is "three hundred thirteen billion, one hundred twenty-three million, three hundred thirty-two thousand, two hundred twenty".