1123332431 has 8 divisors (see below), whose sum is σ = 1210188000. Its totient is φ = 1036540512.

The previous prime is 1123332401. The next prime is 1123332479. The reversal of 1123332431 is 1342333211.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1123332431 is a prime.

It is a super-2 number, since 2×1123332431² = 2523751501072739522, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1123332397 and 1123332406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123332401) 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, 24581 + ... + 53393.

It is an arithmetic number, because the mean of its divisors is an integer number (151273500).

Almost surely, 2^1123332431 is an apocalyptic number.

1123332431 is a deficient number, since it is larger than the sum of its proper divisors (86855569).

1123332431 is a wasteful number, since it uses less digits than its factorization.

1123332431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31825.

The product of its digits is 1296, while the sum is 23.

The square root of 1123332431 is about 33516.1517928297. The cubic root of 1123332431 is about 1039.5277784043.

Adding to 1123332431 its reverse (1342333211), we get a palindrome (2465665642).

The spelling of 1123332431 in words is "one billion, one hundred twenty-three million, three hundred thirty-two thousand, four hundred thirty-one".