1123401331 has 8 divisors (see below), whose sum is σ = 1210510224. Its totient is φ = 1036391520.

The previous prime is 1123401319. The next prime is 1123401371. The reversal of 1123401331 is 1331043211.

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 1123401331 - 2⁷ = 1123401203 is a prime.

It is a super-2 number, since 2×1123401331² = 2524061100985143122, 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 = 1123401299 and 1123401308.

It is not an unprimeable number, because it can be changed into a prime (1123401311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 316 + ... + 47401.

It is an arithmetic number, because the mean of its divisors is an integer number (151313778).

Almost surely, 2^1123401331 is an apocalyptic number.

1123401331 is a deficient number, since it is larger than the sum of its proper divisors (87108893).

1123401331 is a wasteful number, since it uses less digits than its factorization.

1123401331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49541.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1123401331 is about 33517.1796397012. The cubic root of 1123401331 is about 1039.5490312403.

Adding to 1123401331 its reverse (1331043211), we get a palindrome (2454444542).

The spelling of 1123401331 in words is "one billion, one hundred twenty-three million, four hundred one thousand, three hundred thirty-one".