133031213231331 has 16 divisors (see below), whose sum is σ = 188423414854400. Its totient is φ = 83248890555168.

The previous prime is 133031213231327. The next prime is 133031213231351. The reversal of 133031213231331 is 133132312130331.

It is not a de Polignac number, because 133031213231331 - 2² = 133031213231327 is a prime.

It is a super-2 number, since 2×133031213231331² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133031213231311) 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, 10705869631 + ... + 10705882056.

It is an arithmetic number, because the mean of its divisors is an integer number (11776463428400).

Almost surely, 2^{133031213231331} is an apocalyptic number.

133031213231331 is a deficient number, since it is larger than the sum of its proper divisors (55392201623069).

133031213231331 is a wasteful number, since it uses less digits than its factorization.

133031213231331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411751818.

The product of its (nonzero) digits is 8748, while the sum is 30.

Adding to 133031213231331 its reverse (133132312130331), we get a palindrome (266163525361662).

The spelling of 133031213231331 in words is "one hundred thirty-three trillion, thirty-one billion, two hundred thirteen million, two hundred thirty-one thousand, three hundred thirty-one".