1113141440 has 56 divisors (see below), whose sum is σ = 2670121152. Its totient is φ = 441989120.

The previous prime is 1113141439. The next prime is 1113141509. The reversal of 1113141440 is 441413111.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31145 + ... + 56535.

Almost surely, 2^1113141440 is an apocalyptic number.

1113141440 is a gapful number since it is divisible by the number (10) 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 1113141440, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1335060576).

1113141440 is an abundant number, since it is smaller than the sum of its proper divisors (1556979712).

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

1113141440 is a wasteful number, since it uses less digits than its factorization.

1113141440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25545 (or 25535 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 1113141440 is about 33363.7743668189. The cubic root of 1113141440 is about 1036.3746551707.

Adding to 1113141440 its reverse (441413111), we get a palindrome (1554554551).

The spelling of 1113141440 in words is "one billion, one hundred thirteen million, one hundred forty-one thousand, four hundred forty".