1233404131443 has 16 divisors (see below), whose sum is σ = 1814200156800. Its totient is φ = 739118578880.

The previous prime is 1233404131441. The next prime is 1233404131447. The reversal of 1233404131443 is 3441314043321.

It is not a de Polignac number, because 1233404131443 - 2¹ = 1233404131441 is a prime.

It is a super-2 number, since 2×1233404131443² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1233404131441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209973933 + ... + 209979806.

It is an arithmetic number, because the mean of its divisors is an integer number (113387509800).

Almost surely, 2^{1233404131443} is an apocalyptic number.

1233404131443 is a deficient number, since it is larger than the sum of its proper divisors (580796025357).

1233404131443 is a wasteful number, since it uses less digits than its factorization.

1233404131443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 419953842.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1233404131443 its reverse (3441314043321), we get a palindrome (4674718174764).

The spelling of 1233404131443 in words is "one trillion, two hundred thirty-three billion, four hundred four million, one hundred thirty-one thousand, four hundred forty-three".