33142321443 has 72 divisors (see below), whose sum is σ = 56692416144. Its totient is φ = 17158901760.

The previous prime is 33142321441. The next prime is 33142321453. The reversal of 33142321443 is 34412324133.

It is a happy number.

It is not a de Polignac number, because 33142321443 - 2¹ = 33142321441 is a prime.

It is a super-2 number, since 2×33142321443² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 33142321443.

It is not an unprimeable number, because it can be changed into a prime (33142321441) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 5564355 + ... + 5570307.

Almost surely, 2^33142321443 is an apocalyptic number.

33142321443 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

33142321443 is a deficient number, since it is larger than the sum of its proper divisors (23550094701).

33142321443 is a wasteful number, since it uses less digits than its factorization.

33142321443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6305 (or 6287 counting only the distinct ones).

The product of its digits is 20736, while the sum is 30.

Adding to 33142321443 its reverse (34412324133), we get a palindrome (67554645576).

The spelling of 33142321443 in words is "thirty-three billion, one hundred forty-two million, three hundred twenty-one thousand, four hundred forty-three".