31100200230 has 128 divisors (see below), whose sum is σ = 81970569216. Its totient is φ = 7489238400.

The previous prime is 31100200199. The next prime is 31100200249. The reversal of 31100200230 is 3200200113.

It is a happy number.

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, 59464749 + ... + 59465271.

It is an arithmetic number, because the mean of its divisors is an integer number (640395072).

Almost surely, 2^31100200230 is an apocalyptic number.

31100200230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31100200230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40985284608).

31100200230 is an abundant number, since it is smaller than the sum of its proper divisors (50870368986).

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

31100200230 is a wasteful number, since it uses less digits than its factorization.

31100200230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1402.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 31100200230 its reverse (3200200113), we get a palindrome (34300400343).

The spelling of 31100200230 in words is "thirty-one billion, one hundred million, two hundred thousand, two hundred thirty".