1141431240 has 32 divisors (see below), whose sum is σ = 3424294080. Its totient is φ = 304381632.

The previous prime is 1141431223. The next prime is 1141431293. The reversal of 1141431240 is 421341411.

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, 4755844 + ... + 4756083.

It is an arithmetic number, because the mean of its divisors is an integer number (107009190).

Almost surely, 2^1141431240 is an apocalyptic number.

1141431240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1141431240 is an abundant number, since it is smaller than the sum of its proper divisors (2282862840).

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

1141431240 is a wasteful number, since it uses less digits than its factorization.

1141431240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9511941 (or 9511937 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1141431240 is about 33785.0742192466. The cubic root of 1141431240 is about 1045.0809183160.

Adding to 1141431240 its reverse (421341411), we get a palindrome (1562772651).

The spelling of 1141431240 in words is "one billion, one hundred forty-one million, four hundred thirty-one thousand, two hundred forty".