133031320023031 has 4 divisors (see below), whose sum is σ = 133426071714832. Its totient is φ = 132636568331232.

The previous prime is 133031320022983. The next prime is 133031320023083. The reversal of 133031320023031 is 130320023130331.

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 133031320023031 - 2¹⁵ = 133031319990263 is a prime.

It is a super-2 number, since 2×133031320023031² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133031320022987 and 133031320023005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031320023631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 197375845395 + ... + 197375846068.

It is an arithmetic number, because the mean of its divisors is an integer number (33356517928708).

Almost surely, 2^{133031320023031} is an apocalyptic number.

133031320023031 is a deficient number, since it is larger than the sum of its proper divisors (394751691801).

133031320023031 is an equidigital number, since it uses as much as digits as its factorization.

133031320023031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 394751691800.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 133031320023031 its reverse (130320023130331), we get a palindrome (263351343153362).

The spelling of 133031320023031 in words is "one hundred thirty-three trillion, thirty-one billion, three hundred twenty million, twenty-three thousand, thirty-one".