11111140434 has 32 divisors (see below), whose sum is σ = 22345412544. Its totient is φ = 3683232000.

The previous prime is 11111140409. The next prime is 11111140451. The reversal of 11111140434 is 43404111111.

It is a self number, because there is not a number n which added to its sum of digits gives 11111140434.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1229934 + ... + 1238934.

It is an arithmetic number, because the mean of its divisors is an integer number (698294142).

Almost surely, 2^11111140434 is an apocalyptic number.

11111140434 is an abundant number, since it is smaller than the sum of its proper divisors (11234272110).

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

11111140434 is a wasteful number, since it uses less digits than its factorization.

11111140434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10122.

The product of its (nonzero) digits is 192, while the sum is 21.

Adding to 11111140434 its reverse (43404111111), we get a palindrome (54515251545).

The spelling of 11111140434 in words is "eleven billion, one hundred eleven million, one hundred forty thousand, four hundred thirty-four".