1123432403 has 8 divisors (see below), whose sum is σ = 1190064960. Its totient is φ = 1056860800.

The previous prime is 1123432391. The next prime is 1123432441. The reversal of 1123432403 is 3042343211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1123432403 - 2²⁶ = 1056323539 is a prime.

It is a super-3 number, since 3×1123432403³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1123432463) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25913 + ... + 54021.

It is an arithmetic number, because the mean of its divisors is an integer number (148758120).

Almost surely, 2^1123432403 is an apocalyptic number.

1123432403 is a deficient number, since it is larger than the sum of its proper divisors (66632557).

1123432403 is a wasteful number, since it uses less digits than its factorization.

1123432403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30477.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1123432403 is about 33517.6431599837. The cubic root of 1123432403 is about 1039.5586153989.

Adding to 1123432403 its reverse (3042343211), we get a palindrome (4165775614).

The spelling of 1123432403 in words is "one billion, one hundred twenty-three million, four hundred thirty-two thousand, four hundred three".