133111421344 has 96 divisors (see below), whose sum is σ = 294132517056. Its totient is φ = 58784901120.

The previous prime is 133111421341. The next prime is 133111421351. The reversal of 133111421344 is 443124111331.

It is not an unprimeable number, because it can be changed into a prime (133111421341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1682974 + ... + 1760290.

It is an arithmetic number, because the mean of its divisors is an integer number (3063880386).

Almost surely, 2^133111421344 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 133111421344, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (147066258528).

133111421344 is an abundant number, since it is smaller than the sum of its proper divisors (161021095712).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

133111421344 is a wasteful number, since it uses less digits than its factorization.

133111421344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77478 (or 77470 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

Adding to 133111421344 its reverse (443124111331), we get a palindrome (576235532675).

It can be divided in two parts, 133111 and 421344, that added together give a palindrome (554455).

The spelling of 133111421344 in words is "one hundred thirty-three billion, one hundred eleven million, four hundred twenty-one thousand, three hundred forty-four".