31421241420 has 48 divisors (see below), whose sum is σ = 87995587680. Its totient is φ = 8377463296.

The previous prime is 31421241419. The next prime is 31421241433. The reversal of 31421241420 is 2414212413.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 303736 + ... + 393824.

It is an arithmetic number, because the mean of its divisors is an integer number (1833241410).

Almost surely, 2^31421241420 is an apocalyptic number.

31421241420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31421241420 is an abundant number, since it is smaller than the sum of its proper divisors (56574346260).

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

31421241420 is a wasteful number, since it uses less digits than its factorization.

31421241420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95914 (or 95912 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 31421241420 its reverse (2414212413), we get a palindrome (33835453833).

The spelling of 31421241420 in words is "thirty-one billion, four hundred twenty-one million, two hundred forty-one thousand, four hundred twenty".