1123444131 has 16 divisors (see below), whose sum is σ = 1564448256. Its totient is φ = 715759616.

The previous prime is 1123444129. The next prime is 1123444151. The reversal of 1123444131 is 1314443211.

It is a cyclic number.

It is not a de Polignac number, because 1123444131 - 2¹ = 1123444129 is a prime.

It is a super-2 number, since 2×1123444131² = 2524253430956690322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1123444151) 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, 77731 + ... + 91043.

It is an arithmetic number, because the mean of its divisors is an integer number (97778016).

Almost surely, 2^1123444131 is an apocalyptic number.

1123444131 is a deficient number, since it is larger than the sum of its proper divisors (441004125).

1123444131 is a wasteful number, since it uses less digits than its factorization.

1123444131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14562.

The product of its digits is 1152, while the sum is 24.

The square root of 1123444131 is about 33517.8181121624. The cubic root of 1123444131 is about 1039.5622328547.

Adding to 1123444131 its reverse (1314443211), we get a palindrome (2437887342).

The spelling of 1123444131 in words is "one billion, one hundred twenty-three million, four hundred forty-four thousand, one hundred thirty-one".