1123031552 has 20 divisors (see below), whose sum is σ = 2243870706. Its totient is φ = 561515520.

The previous prime is 1123031551. The next prime is 1123031561. The reversal of 1123031552 is 2551303211.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 886610176 + 236421376 = 29776^2 + 15376^2 .

It is a super-2 number, since 2×1123031552² = 2522399733575057408, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123031551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1096199 + ... + 1097222.

Almost surely, 2^1123031552 is an apocalyptic number.

It is an amenable number.

1123031552 is a deficient number, since it is larger than the sum of its proper divisors (1120839154).

1123031552 is an frugal number, since it uses more digits than its factorization.

1123031552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2193439 (or 2193423 counting only the distinct ones).

The product of its (nonzero) digits is 900, while the sum is 23.

The square root of 1123031552 is about 33511.6629250176. The cubic root of 1123031552 is about 1039.4349593365.

Adding to 1123031552 its reverse (2551303211), we get a palindrome (3674334763).

The spelling of 1123031552 in words is "one billion, one hundred twenty-three million, thirty-one thousand, five hundred fifty-two".