31421241104 has 20 divisors (see below), whose sum is σ = 66413078160. Its totient is φ = 14282382240.

The previous prime is 31421241043. The next prime is 31421241109. The reversal of 31421241104 is 40114212413.

It is a self number, because there is not a number n which added to its sum of digits gives 31421241104.

It is not an unprimeable number, because it can be changed into a prime (31421241109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89264714 + ... + 89265065.

It is an arithmetic number, because the mean of its divisors is an integer number (3320653908).

Almost surely, 2^31421241104 is an apocalyptic number.

It is an amenable number.

31421241104 is an abundant number, since it is smaller than the sum of its proper divisors (34991837056).

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

31421241104 is a wasteful number, since it uses less digits than its factorization.

31421241104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178529798 (or 178529792 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31421241104 its reverse (40114212413), we get a palindrome (71535453517).

The spelling of 31421241104 in words is "thirty-one billion, four hundred twenty-one million, two hundred forty-one thousand, one hundred four".