313233221020 has 48 divisors (see below), whose sum is σ = 665322644448. Its totient is φ = 123862265600.

The previous prime is 313233221017. The next prime is 313233221023. The reversal of 313233221020 is 20122332313.

It is an interprime number because it is at equal distance from previous prime (313233221017) and next prime (313233221023).

It is a junction number, because it is equal to n+sod(n) for n = 313233220982 and 313233221000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313233221023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1200327 + ... + 1437793.

It is an arithmetic number, because the mean of its divisors is an integer number (13860888426).

Almost surely, 2^313233221020 is an apocalyptic number.

It is an amenable number.

313233221020 is an abundant number, since it is smaller than the sum of its proper divisors (352089423428).

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

313233221020 is a wasteful number, since it uses less digits than its factorization.

313233221020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 238230 (or 238228 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 313233221020 its reverse (20122332313), we get a palindrome (333355553333).

The spelling of 313233221020 in words is "three hundred thirteen billion, two hundred thirty-three million, two hundred twenty-one thousand, twenty".