1331420112 has 120 divisors (see below), whose sum is σ = 4200842240. Its totient is φ = 403444800.

The previous prime is 1331420107. The next prime is 1331420141. The reversal of 1331420112 is 2110241331.

1331420112 is a `hidden beast` number, since 133 + 1 + 420 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 39537 + ... + 65007.

Almost surely, 2^1331420112 is an apocalyptic number.

1331420112 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 1331420112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2100421120).

1331420112 is an abundant number, since it is smaller than the sum of its proper divisors (2869422128).

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

1331420112 is a wasteful number, since it uses less digits than its factorization.

1331420112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25510 (or 25487 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1331420112 is about 36488.6299002854. The cubic root of 1331420112 is about 1100.1157211589.

Adding to 1331420112 its reverse (2110241331), we get a palindrome (3441661443).

The spelling of 1331420112 in words is "one billion, three hundred thirty-one million, four hundred twenty thousand, one hundred twelve".