1131334240 has 48 divisors (see below), whose sum is σ = 2674788480. Its totient is φ = 452193280.

The previous prime is 1131334231. The next prime is 1131334247. The reversal of 1131334240 is 424331311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131334247) 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, 413196 + ... + 415924.

It is an arithmetic number, because the mean of its divisors is an integer number (55724760).

Almost surely, 2^1131334240 is an apocalyptic number.

1131334240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1131334240 is an abundant number, since it is smaller than the sum of its proper divisors (1543454240).

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

1131334240 is a wasteful number, since it uses less digits than its factorization.

1131334240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5335 (or 5327 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1131334240 is about 33635.3123963492. The cubic root of 1131334240 is about 1041.9902224612.

Adding to 1131334240 its reverse (424331311), we get a palindrome (1555665551).

The spelling of 1131334240 in words is "one billion, one hundred thirty-one million, three hundred thirty-four thousand, two hundred forty".