133121202331 has 8 divisors (see below), whose sum is σ = 143600637600. Its totient is φ = 122675958912.

The previous prime is 133121202317. The next prime is 133121202377. The reversal of 133121202331 is 133202121331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 133121202331 - 2¹⁹ = 133120678043 is a prime.

It is a super-3 number, since 3×133121202331³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121202301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8539870 + ... + 8555443.

It is an arithmetic number, because the mean of its divisors is an integer number (17950079700).

Almost surely, 2^133121202331 is an apocalyptic number.

133121202331 is a deficient number, since it is larger than the sum of its proper divisors (10479435269).

133121202331 is a wasteful number, since it uses less digits than its factorization.

133121202331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17095925.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 133121202331 its reverse (133202121331), we get a palindrome (266323323662).

The spelling of 133121202331 in words is "one hundred thirty-three billion, one hundred twenty-one million, two hundred two thousand, three hundred thirty-one".