1243321401124 has 12 divisors (see below), whose sum is σ = 2373613584048. Its totient is φ = 565146091400.

The previous prime is 1243321401097. The next prime is 1243321401169. The reversal of 1243321401124 is 4211041233421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1243321401092 and 1243321401101.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14128652242 + ... + 14128652329.

It is an arithmetic number, because the mean of its divisors is an integer number (197801132004).

Almost surely, 2^{1243321401124} is an apocalyptic number.

It is an amenable number.

1243321401124 is a deficient number, since it is larger than the sum of its proper divisors (1130292182924).

1243321401124 is a wasteful number, since it uses less digits than its factorization.

1243321401124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28257304586 (or 28257304584 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 1243321401124 its reverse (4211041233421), we get a palindrome (5454362634545).

The spelling of 1243321401124 in words is "one trillion, two hundred forty-three billion, three hundred twenty-one million, four hundred one thousand, one hundred twenty-four".