1310021112 has 64 divisors (see below), whose sum is σ = 3386484000. Its totient is φ = 421977600.

The previous prime is 1310021107. The next prime is 1310021113. The reversal of 1310021112 is 2111200131.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1310021113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 127362 + ... + 137262.

Almost surely, 2^1310021112 is an apocalyptic number.

1310021112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1310021112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1693242000).

1310021112 is an abundant number, since it is smaller than the sum of its proper divisors (2076462888).

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

1310021112 is a wasteful number, since it uses less digits than its factorization.

1310021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10096 (or 10092 counting only the distinct ones).

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

The square root of 1310021112 is about 36194.2137917099. The cubic root of 1310021112 is about 1094.1900593005.

Adding to 1310021112 its reverse (2111200131), we get a palindrome (3421221243).

The spelling of 1310021112 in words is "one billion, three hundred ten million, twenty-one thousand, one hundred twelve".