133545312031 has 8 divisors (see below), whose sum is σ = 134416586304. Its totient is φ = 132674299680.

The previous prime is 133545312007. The next prime is 133545312077. The reversal of 133545312031 is 130213545331.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133545312031 - 2¹⁷ = 133545180959 is a prime.

It is a super-2 number, since 2×133545312031² (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 = 133545311984 and 133545312002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133545312001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1015521 + ... + 1139461.

It is an arithmetic number, because the mean of its divisors is an integer number (16802073288).

Almost surely, 2^133545312031 is an apocalyptic number.

133545312031 is a deficient number, since it is larger than the sum of its proper divisors (871274273).

133545312031 is a wasteful number, since it uses less digits than its factorization.

133545312031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130961.

The product of its (nonzero) digits is 16200, while the sum is 31.

Adding to 133545312031 its reverse (130213545331), we get a palindrome (263758857362).

The spelling of 133545312031 in words is "one hundred thirty-three billion, five hundred forty-five million, three hundred twelve thousand, thirty-one".