133431310013 has 16 divisors (see below), whose sum is σ = 148816825920. Its totient is φ = 118892157696.

The previous prime is 133431310007. The next prime is 133431310063. The reversal of 133431310013 is 310013134331.

It is not a de Polignac number, because 133431310013 - 2³⁴ = 116251440829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133431310063) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 339731 + ... + 618287.

It is an arithmetic number, because the mean of its divisors is an integer number (9301051620).

Almost surely, 2^133431310013 is an apocalyptic number.

It is an amenable number.

133431310013 is a deficient number, since it is larger than the sum of its proper divisors (15385515907).

133431310013 is a wasteful number, since it uses less digits than its factorization.

133431310013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 280076.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 133431310013 its reverse (310013134331), we get a palindrome (443444444344).

The spelling of 133431310013 in words is "one hundred thirty-three billion, four hundred thirty-one million, three hundred ten thousand, thirteen".