1331041423 has 4 divisors (see below), whose sum is σ = 1331241688. Its totient is φ = 1330841160.

The previous prime is 1331041421. The next prime is 1331041433. The reversal of 1331041423 is 3241401331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3241401331 = 7 ⋅463057333.

It is a cyclic number.

It is not a de Polignac number, because 1331041423 - 2¹ = 1331041421 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331041394 and 1331041403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331041421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89808 + ... + 103573.

It is an arithmetic number, because the mean of its divisors is an integer number (332810422).

Almost surely, 2^1331041423 is an apocalyptic number.

1331041423 is a deficient number, since it is larger than the sum of its proper divisors (200265).

1331041423 is an equidigital number, since it uses as much as digits as its factorization.

1331041423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200264.

The product of its (nonzero) digits is 864, while the sum is 22.

The square root of 1331041423 is about 36483.4403942391. The cubic root of 1331041423 is about 1100.0114111764.

Adding to 1331041423 its reverse (3241401331), we get a palindrome (4572442754).

The spelling of 1331041423 in words is "one billion, three hundred thirty-one million, forty-one thousand, four hundred twenty-three".