133031431033 has 4 divisors (see below), whose sum is σ = 133378771968. Its totient is φ = 132684090100.

The previous prime is 133031430989. The next prime is 133031431063. The reversal of 133031431033 is 330134130331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 133031431033 - 2²¹ = 133029333881 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133031430989 and 133031431007.

It is not an unprimeable number, because it can be changed into a prime (133031431063) 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, 173669893 + ... + 173670658.

It is an arithmetic number, because the mean of its divisors is an integer number (33344692992).

Almost surely, 2^133031431033 is an apocalyptic number.

It is an amenable number.

133031431033 is a deficient number, since it is larger than the sum of its proper divisors (347340935).

133031431033 is an equidigital number, since it uses as much as digits as its factorization.

133031431033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 347340934.

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

Adding to 133031431033 its reverse (330134130331), we get a palindrome (463165561364).

The spelling of 133031431033 in words is "one hundred thirty-three billion, thirty-one million, four hundred thirty-one thousand, thirty-three".