133021113144 has 64 divisors (see below), whose sum is σ = 344242483200. Its totient is φ = 42783721344.

The previous prime is 133021113143. The next prime is 133021113151. The reversal of 133021113144 is 441311120331.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133021113143) 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, 1029649 + ... + 1151615.

It is an arithmetic number, because the mean of its divisors is an integer number (5378788800).

Almost surely, 2^133021113144 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 133021113144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (172121241600).

133021113144 is an abundant number, since it is smaller than the sum of its proper divisors (211221370056).

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

133021113144 is a wasteful number, since it uses less digits than its factorization.

133021113144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123572 (or 123568 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 133021113144 its reverse (441311120331), we get a palindrome (574332233475).

The spelling of 133021113144 in words is "one hundred thirty-three billion, twenty-one million, one hundred thirteen thousand, one hundred forty-four".