31441203420 has 192 divisors, whose sum is σ = 103560629760. Its totient is φ = 7044710400.

The previous prime is 31441203397. The next prime is 31441203449. The reversal of 31441203420 is 2430214413.

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, 483564 + ... + 544716.

It is an arithmetic number, because the mean of its divisors is an integer number (539378280).

Almost surely, 2^31441203420 is an apocalyptic number.

31441203420 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 31441203420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (51780314880).

31441203420 is an abundant number, since it is smaller than the sum of its proper divisors (72119426340).

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

31441203420 is a wasteful number, since it uses less digits than its factorization.

31441203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61236 (or 61234 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 31441203420 its reverse (2430214413), we get a palindrome (33871417833).

The spelling of 31441203420 in words is "thirty-one billion, four hundred forty-one million, two hundred three thousand, four hundred twenty".