1123541142 has 32 divisors (see below), whose sum is σ = 2329516800. Its totient is φ = 360829728.

The previous prime is 1123541137. The next prime is 1123541143. The reversal of 1123541142 is 2411453211.

1123541142 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123541143) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78109 + ... + 91367.

It is an arithmetic number, because the mean of its divisors is an integer number (72797400).

Almost surely, 2^1123541142 is an apocalyptic number.

1123541142 is an abundant number, since it is smaller than the sum of its proper divisors (1205975658).

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

1123541142 is a wasteful number, since it uses less digits than its factorization.

1123541142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13780.

The product of its digits is 960, while the sum is 24.

The square root of 1123541142 is about 33519.2652365770. The cubic root of 1123541142 is about 1039.5921545530.

Adding to 1123541142 its reverse (2411453211), we get a palindrome (3534994353).

The spelling of 1123541142 in words is "one billion, one hundred twenty-three million, five hundred forty-one thousand, one hundred forty-two".