1121235542 has 24 divisors (see below), whose sum is σ = 1975829760. Its totient is φ = 475767600.

The previous prime is 1121235541. The next prime is 1121235589. The reversal of 1121235542 is 2455321211.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121235541) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 46742 + ... + 66537.

It is an arithmetic number, because the mean of its divisors is an integer number (82326240).

Almost surely, 2^1121235542 is an apocalyptic number.

1121235542 is a deficient number, since it is larger than the sum of its proper divisors (854594218).

1121235542 is a wasteful number, since it uses less digits than its factorization.

1121235542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113396 (or 113389 counting only the distinct ones).

The product of its digits is 2400, while the sum is 26.

The square root of 1121235542 is about 33484.8554125593. The cubic root of 1121235542 is about 1038.8805576835.

Adding to 1121235542 its reverse (2455321211), we get a palindrome (3576556753).

The spelling of 1121235542 in words is "one billion, one hundred twenty-one million, two hundred thirty-five thousand, five hundred forty-two".