31100214 has 8 divisors (see below), whose sum is σ = 62200440. Its totient is φ = 10366736.

The previous prime is 31100203. The next prime is 31100219. The reversal of 31100214 is 41200113.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

31100214 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 31100214.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100219) 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, 2591679 + ... + 2591690.

It is an arithmetic number, because the mean of its divisors is an integer number (7775055).

Almost surely, 2^31100214 is an apocalyptic number.

31100214 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31100214 is a wasteful number, since it uses less digits than its factorization.

31100214 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5183374.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 31100214 is about 5576.7565842522. The cubic root of 31100214 is about 314.4762068504.

Adding to 31100214 its reverse (41200113), we get a palindrome (72300327).

The spelling of 31100214 in words is "thirty-one million, one hundred thousand, two hundred fourteen".