1111342540 has 72 divisors (see below), whose sum is σ = 2961684432. Its totient is φ = 346389120.

The previous prime is 1111342511. The next prime is 1111342541. The reversal of 1111342540 is 452431111.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (1111342541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40767 + ... + 62326.

It is an arithmetic number, because the mean of its divisors is an integer number (41134506).

Almost surely, 2^1111342540 is an apocalyptic number.

1111342540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1111342540 is an abundant number, since it is smaller than the sum of its proper divisors (1850341892).

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

1111342540 is a wasteful number, since it uses less digits than its factorization.

1111342540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103127 (or 103118 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 22.

The square root of 1111342540 is about 33336.8045859227. The cubic root of 1111342540 is about 1035.8160739959.

Adding to 1111342540 its reverse (452431111), we get a palindrome (1563773651).

The spelling of 1111342540 in words is "one billion, one hundred eleven million, three hundred forty-two thousand, five hundred forty".