31301112 has 64 divisors (see below), whose sum is σ = 81396000. Its totient is φ = 10022400.

The previous prime is 31301099. The next prime is 31301141. The reversal of 31301112 is 21110313.

It is a super-2 number, since 2×31301112² = 1959519224873088, which contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 89514 + ... + 89862.

Almost surely, 2^31301112 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 31301112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40698000).

31301112 is an abundant number, since it is smaller than the sum of its proper divisors (50094888).

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

31301112 is a wasteful number, since it uses less digits than its factorization.

31301112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 496 (or 492 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 31301112 is about 5594.7396722278. The cubic root of 31301112 is about 315.1518944940.

Adding to 31301112 its reverse (21110313), we get a palindrome (52411425).

It can be divided in two parts, 31301 and 112, that added together give a palindrome (31413).

The spelling of 31301112 in words is "thirty-one million, three hundred one thousand, one hundred twelve".