133113103323231 has 4 divisors (see below), whose sum is σ = 177484137764312. Its totient is φ = 88742068882152.

The previous prime is 133113103323181. The next prime is 133113103323257. The reversal of 133113103323231 is 132323301311331.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 133113103323231 - 2¹⁰ = 133113103322207 is a prime.

It is a super-2 number, since 2×133113103323231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133113103323131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22185517220536 + ... + 22185517220541.

It is an arithmetic number, because the mean of its divisors is an integer number (44371034441078).

Almost surely, 2^{133113103323231} is an apocalyptic number.

133113103323231 is a deficient number, since it is larger than the sum of its proper divisors (44371034441081).

133113103323231 is an equidigital number, since it uses as much as digits as its factorization.

133113103323231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44371034441080.

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

Adding to 133113103323231 its reverse (132323301311331), we get a palindrome (265436404634562).

The spelling of 133113103323231 in words is "one hundred thirty-three trillion, one hundred thirteen billion, one hundred three million, three hundred twenty-three thousand, two hundred thirty-one".