31241969880 has 256 divisors, whose sum is σ = 105982525440. Its totient is φ = 7299110400.

The previous prime is 31241969873. The next prime is 31241969939. The reversal of 31241969880 is 8896914213.

It is a congruent number.

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, 10760509 + ... + 10763411.

It is an arithmetic number, because the mean of its divisors is an integer number (413994240).

Almost surely, 2^31241969880 is an apocalyptic number.

31241969880 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 31241969880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52991262720).

31241969880 is an abundant number, since it is smaller than the sum of its proper divisors (74740555560).

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

31241969880 is a wasteful number, since it uses less digits than its factorization.

31241969880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3222 (or 3218 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 51.

The spelling of 31241969880 in words is "thirty-one billion, two hundred forty-one million, nine hundred sixty-nine thousand, eight hundred eighty".