1120421140 has 24 divisors (see below), whose sum is σ = 2358949320. Its totient is φ = 447013248.

The previous prime is 1120421129. The next prime is 1120421147. The reversal of 1120421140 is 411240211.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 6330256 + 1114090884 = 2516^2 + 33378^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1120421147) 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, 64227 + ... + 79786.

It is an arithmetic number, because the mean of its divisors is an integer number (98289555).

Almost surely, 2^1120421140 is an apocalyptic number.

1120421140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1120421140 is an abundant number, since it is smaller than the sum of its proper divisors (1238528180).

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

1120421140 is a wasteful number, since it uses less digits than its factorization.

1120421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144411 (or 144409 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

The square root of 1120421140 is about 33472.6924522065. The cubic root of 1120421140 is about 1038.6289687592.

Adding to 1120421140 its reverse (411240211), we get a palindrome (1531661351).

The spelling of 1120421140 in words is "one billion, one hundred twenty million, four hundred twenty-one thousand, one hundred forty".