133320401244 has 36 divisors (see below), whose sum is σ = 337351505400. Its totient is φ = 44394354720.

The previous prime is 133320401189. The next prime is 133320401251. The reversal of 133320401244 is 442104023331.

133320401244 is a `hidden beast` number, since 1 + 333 + 204 + 0 + 124 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×133320401244² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1872019 + ... + 1941930.

It is an arithmetic number, because the mean of its divisors is an integer number (9370875150).

Almost surely, 2^133320401244 is an apocalyptic number.

It is an amenable number.

133320401244 is an abundant number, since it is smaller than the sum of its proper divisors (204031104156).

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

133320401244 is a wasteful number, since it uses less digits than its factorization.

133320401244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3814930 (or 3814925 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 133320401244 its reverse (442104023331), we get a palindrome (575424424575).

The spelling of 133320401244 in words is "one hundred thirty-three billion, three hundred twenty million, four hundred one thousand, two hundred forty-four".