133113313031 has 4 divisors (see below), whose sum is σ = 133114948512. Its totient is φ = 133111677552.

The previous prime is 133113313019. The next prime is 133113313051. The reversal of 133113313031 is 130313311331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130313311331 = 7 ⋅18616187333.

It is a cyclic number.

It is not a de Polignac number, because 133113313031 - 2⁶ = 133113312967 is a prime.

It is a super-2 number, since 2×133113313031² (a number of 23 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 = 133113312988 and 133113313006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133113313051) 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, 688886 + ... + 860691.

It is an arithmetic number, because the mean of its divisors is an integer number (33278737128).

Almost surely, 2^133113313031 is an apocalyptic number.

133113313031 is a deficient number, since it is larger than the sum of its proper divisors (1635481).

133113313031 is an equidigital number, since it uses as much as digits as its factorization.

133113313031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635480.

The product of its (nonzero) digits is 729, while the sum is 23.

Adding to 133113313031 its reverse (130313311331), we get a palindrome (263426624362).

The spelling of 133113313031 in words is "one hundred thirty-three billion, one hundred thirteen million, three hundred thirteen thousand, thirty-one".