31201104 has 40 divisors (see below), whose sum is σ = 87931872. Its totient is φ = 9454720.

The previous prime is 31201099. The next prime is 31201109. The reversal of 31201104 is 40110213.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (31201099) and next prime (31201109).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a self number, because there is not a number n which added to its sum of digits gives 31201104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31201109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29019 + ... + 30074.

Almost surely, 2^31201104 is an apocalyptic number.

It is an amenable number.

31201104 is an abundant number, since it is smaller than the sum of its proper divisors (56730768).

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

31201104 is a wasteful number, since it uses less digits than its factorization.

31201104 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59115 (or 59109 counting only the distinct ones).

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

The square root of 31201104 is about 5585.7948404860. The cubic root of 31201104 is about 314.8158964518.

Adding to 31201104 its reverse (40110213), we get a palindrome (71311317).

It can be divided in two parts, 3120 and 1104, that added together give a palindrome (4224).

The spelling of 31201104 in words is "thirty-one million, two hundred one thousand, one hundred four".