1381244123 has 8 divisors (see below), whose sum is σ = 1587287520. Its totient is φ = 1177381440.

The previous prime is 1381244119. The next prime is 1381244143. The reversal of 1381244123 is 3214421831.

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 1381244123 - 2² = 1381244119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1381244113) 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, 543818 + ... + 546351.

It is an arithmetic number, because the mean of its divisors is an integer number (198410940).

Almost surely, 2^1381244123 is an apocalyptic number.

1381244123 is a deficient number, since it is larger than the sum of its proper divisors (206043397).

1381244123 is a wasteful number, since it uses less digits than its factorization.

1381244123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1090357.

The product of its digits is 4608, while the sum is 29.

The square root of 1381244123 is about 37165.0928022520. The cubic root of 1381244123 is about 1113.6707528336.

Adding to 1381244123 its reverse (3214421831), we get a palindrome (4595665954).

The spelling of 1381244123 in words is "one billion, three hundred eighty-one million, two hundred forty-four thousand, one hundred twenty-three".