133131332315 has 4 divisors (see below), whose sum is σ = 159757598784. Its totient is φ = 106505065848.

The previous prime is 133131332311. The next prime is 133131332339. The reversal of 133131332315 is 513233131331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 513233131331 = 43 ⋅11935654217.

It is a cyclic number.

It is not a de Polignac number, because 133131332315 - 2² = 133131332311 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133131332311) 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, 13313133227 + ... + 13313133236.

It is an arithmetic number, because the mean of its divisors is an integer number (39939399696).

Almost surely, 2^133131332315 is an apocalyptic number.

133131332315 is a deficient number, since it is larger than the sum of its proper divisors (26626266469).

133131332315 is an equidigital number, since it uses as much as digits as its factorization.

133131332315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26626266468.

The product of its digits is 7290, while the sum is 29.

Adding to 133131332315 its reverse (513233131331), we get a palindrome (646364463646).

The spelling of 133131332315 in words is "one hundred thirty-three billion, one hundred thirty-one million, three hundred thirty-two thousand, three hundred fifteen".