3313131131220 has 24 divisors (see below), whose sum is σ = 9276767167584. Its totient is φ = 883501634976.

The previous prime is 3313131131137. The next prime is 3313131131267. The reversal of 3313131131220 is 221311313133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27609426034 + ... + 27609426153.

It is an arithmetic number, because the mean of its divisors is an integer number (386531965316).

Almost surely, 2^{3313131131220} is an apocalyptic number.

3313131131220 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

3313131131220 is an abundant number, since it is smaller than the sum of its proper divisors (5963636036364).

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

3313131131220 is a wasteful number, since it uses less digits than its factorization.

3313131131220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55218852199 (or 55218852197 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 3313131131220 its reverse (221311313133), we get a palindrome (3534442444353).

The spelling of 3313131131220 in words is "three trillion, three hundred thirteen billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred twenty".