133451231530031 has 4 divisors (see below), whose sum is σ = 141301303972992. Its totient is φ = 125601159087072.

The previous prime is 133451231530013. The next prime is 133451231530033. The reversal of 133451231530031 is 130035132154331.

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 133451231530031 - 2²⁶ = 133451164421167 is a prime.

It is a super-2 number, since 2×133451231530031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 133451231529973 and 133451231530000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133451231530033) 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, 3925036221455 + ... + 3925036221488.

It is an arithmetic number, because the mean of its divisors is an integer number (35325325993248).

Almost surely, 2^{133451231530031} is an apocalyptic number.

133451231530031 is a deficient number, since it is larger than the sum of its proper divisors (7850072442961).

133451231530031 is an equidigital number, since it uses as much as digits as its factorization.

133451231530031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7850072442960.

The product of its (nonzero) digits is 48600, while the sum is 35.

Adding to 133451231530031 its reverse (130035132154331), we get a palindrome (263486363684362).

The spelling of 133451231530031 in words is "one hundred thirty-three trillion, four hundred fifty-one billion, two hundred thirty-one million, five hundred thirty thousand, thirty-one".