31113232003020 has 192 divisors, whose sum is σ = 88628444835840. Its totient is φ = 8153532085248.

The previous prime is 31113232003013. The next prime is 31113232003031. The reversal of 31113232003020 is 2030023231113.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3994505286 + ... + 3994513074.

It is an arithmetic number, because the mean of its divisors is an integer number (461606483520).

Almost surely, 2^{31113232003020} is an apocalyptic number.

31113232003020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31113232003020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44314222417920).

31113232003020 is an abundant number, since it is smaller than the sum of its proper divisors (57515212832820).

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

31113232003020 is a wasteful number, since it uses less digits than its factorization.

31113232003020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10112 (or 10110 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31113232003020 its reverse (2030023231113), we get a palindrome (33143255234133).

The spelling of 31113232003020 in words is "thirty-one trillion, one hundred thirteen billion, two hundred thirty-two million, three thousand, twenty".