133031034431 has 4 divisors (see below), whose sum is σ = 136626467832. Its totient is φ = 129435601032.

The previous prime is 133031034413. The next prime is 133031034443. The reversal of 133031034431 is 134430130331.

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 133031034431 - 2¹⁴ = 133031018047 is a prime.

It is a super-2 number, since 2×133031034431² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133031034431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133031034481) 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, 1797716645 + ... + 1797716718.

It is an arithmetic number, because the mean of its divisors is an integer number (34156616958).

Almost surely, 2^133031034431 is an apocalyptic number.

133031034431 is a deficient number, since it is larger than the sum of its proper divisors (3595433401).

133031034431 is an equidigital number, since it uses as much as digits as its factorization.

133031034431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3595433400.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 133031034431 its reverse (134430130331), we get a palindrome (267461164762).

The spelling of 133031034431 in words is "one hundred thirty-three billion, thirty-one million, thirty-four thousand, four hundred thirty-one".