1123111534 has 4 divisors (see below), whose sum is σ = 1684667304. Its totient is φ = 561555766.

The previous prime is 1123111523. The next prime is 1123111543. The reversal of 1123111534 is 4351113211.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4351113211 = 2381 ⋅1827431.

It is a super-2 number, since 2×1123111534² = 2522759035607666312, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 280777882 + ... + 280777885.

It is an arithmetic number, because the mean of its divisors is an integer number (421166826).

Almost surely, 2^1123111534 is an apocalyptic number.

1123111534 is a deficient number, since it is larger than the sum of its proper divisors (561555770).

1123111534 is an equidigital number, since it uses as much as digits as its factorization.

1123111534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561555769.

The product of its digits is 360, while the sum is 22.

The square root of 1123111534 is about 33512.8562495052. The cubic root of 1123111534 is about 1039.4596348419.

Adding to 1123111534 its reverse (4351113211), we get a palindrome (5474224745).

The spelling of 1123111534 in words is "one billion, one hundred twenty-three million, one hundred eleven thousand, five hundred thirty-four".