1113142140 has 72 divisors (see below), whose sum is σ = 3683495088. Its totient is φ = 269852160.

The previous prime is 1113142123. The next prime is 1113142157. The reversal of 1113142140 is 412413111.

It is an interprime number because it is at equal distance from previous prime (1113142123) and next prime (1113142157).

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 polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 279117 + ... + 283076.

It is an arithmetic number, because the mean of its divisors is an integer number (51159654).

Almost surely, 2^1113142140 is an apocalyptic number.

1113142140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1113142140 is an abundant number, since it is smaller than the sum of its proper divisors (2570352948).

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

1113142140 is a wasteful number, since it uses less digits than its factorization.

1113142140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562219 (or 562214 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1113142140 is about 33363.7848572370. The cubic root of 1113142140 is about 1036.3748724124.

Adding to 1113142140 its reverse (412413111), we get a palindrome (1525555251).

The spelling of 1113142140 in words is "one billion, one hundred thirteen million, one hundred forty-two thousand, one hundred forty".