31000201100 has 72 divisors (see below), whose sum is σ = 73516388400. Its totient is φ = 11252761600.

The previous prime is 31000201093. The next prime is 31000201151. The reversal of 31000201100 is 110200013.

It is a super-2 number, since 2×31000201100² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 601136 + ... + 650664.

It is an arithmetic number, because the mean of its divisors is an integer number (1021060950).

Almost surely, 2^31000201100 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31000201100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36758194200).

31000201100 is an abundant number, since it is smaller than the sum of its proper divisors (42516187300).

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

31000201100 is a wasteful number, since it uses less digits than its factorization.

31000201100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50123 (or 50116 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 31000201100 its reverse (110200013), we get a palindrome (31110401113).

The spelling of 31000201100 in words is "thirty-one billion, two hundred one thousand, one hundred".