133031321123 has 4 divisors (see below), whose sum is σ = 133109622600. Its totient is φ = 132953019648.

The previous prime is 133031321113. The next prime is 133031321147. The reversal of 133031321123 is 321123130331.

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

It is a cyclic number.

It is not a de Polignac number, because 133031321123 - 2²⁶ = 132964212259 is a prime.

It is a super-2 number, since 2×133031321123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133031321113) 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, 39148190 + ... + 39151587.

It is an arithmetic number, because the mean of its divisors is an integer number (33277405650).

Almost surely, 2^133031321123 is an apocalyptic number.

133031321123 is a deficient number, since it is larger than the sum of its proper divisors (78301477).

133031321123 is an equidigital number, since it uses as much as digits as its factorization.

133031321123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78301476.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133031321123 its reverse (321123130331), we get a palindrome (454154451454).

The spelling of 133031321123 in words is "one hundred thirty-three billion, thirty-one million, three hundred twenty-one thousand, one hundred twenty-three".