1120421312 has 56 divisors (see below), whose sum is σ = 2363870304. Its totient is φ = 525074432.

The previous prime is 1120421311. The next prime is 1120421347. The reversal of 1120421312 is 2131240211.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120421311) 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, 277613 + ... + 281619.

Almost surely, 2^1120421312 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 1120421312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1181935152).

1120421312 is an abundant number, since it is smaller than the sum of its proper divisors (1243448992).

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

1120421312 is a wasteful number, since it uses less digits than its factorization.

1120421312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4293 (or 4283 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1120421312 is about 33472.6950214649. The cubic root of 1120421312 is about 1038.6290219072.

Adding to 1120421312 its reverse (2131240211), we get a palindrome (3251661523).

The spelling of 1120421312 in words is "one billion, one hundred twenty million, four hundred twenty-one thousand, three hundred twelve".