1243244413123 has 8 divisors (see below), whose sum is σ = 1261219196160. Its totient is φ = 1225389064320.

The previous prime is 1243244413111. The next prime is 1243244413141. The reversal of 1243244413123 is 3213144423421.

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 1243244413123 - 2¹⁷ = 1243244282051 is a prime.

It is a super-2 number, since 2×1243244413123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243244413163) 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, 29837590 + ... + 29879227.

It is an arithmetic number, because the mean of its divisors is an integer number (157652399520).

Almost surely, 2^{1243244413123} is an apocalyptic number.

1243244413123 is a deficient number, since it is larger than the sum of its proper divisors (17974783037).

1243244413123 is a wasteful number, since it uses less digits than its factorization.

1243244413123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59717117.

The product of its digits is 55296, while the sum is 34.

Adding to 1243244413123 its reverse (3213144423421), we get a palindrome (4456388836544).

The spelling of 1243244413123 in words is "one trillion, two hundred forty-three billion, two hundred forty-four million, four hundred thirteen thousand, one hundred twenty-three".