31241200100 has 72 divisors (see below), whose sum is σ = 73987452000. Its totient is φ = 11355673600.

The previous prime is 31241200099. The next prime is 31241200103. The reversal of 31241200100 is 100214213.

It is not an unprimeable number, because it can be changed into a prime (31241200103) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3624596 + ... + 3633204.

It is an arithmetic number, because the mean of its divisors is an integer number (1027603500).

Almost surely, 2^31241200100 is an apocalyptic number.

It is an amenable number.

31241200100 is an abundant number, since it is smaller than the sum of its proper divisors (42746251900).

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

31241200100 is a wasteful number, since it uses less digits than its factorization.

31241200100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11933 (or 11926 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 31241200100 its reverse (100214213), we get a palindrome (31341414313).

The spelling of 31241200100 in words is "thirty-one billion, two hundred forty-one million, two hundred thousand, one hundred".