133131431315 has 16 divisors (see below), whose sum is σ = 163181934720. Its totient is φ = 104223031680.

The previous prime is 133131431287. The next prime is 133131431371. The reversal of 133131431315 is 513134131331.

It is a happy number.

It is not a de Polignac number, because 133131431315 - 2²⁶ = 133064322451 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1621145 + ... + 1701285.

It is an arithmetic number, because the mean of its divisors is an integer number (10198870920).

Almost surely, 2^133131431315 is an apocalyptic number.

133131431315 is a deficient number, since it is larger than the sum of its proper divisors (30050503405).

133131431315 is an equidigital number, since it uses as much as digits as its factorization.

133131431315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87262.

The product of its digits is 4860, while the sum is 29.

Adding to 133131431315 its reverse (513134131331), we get a palindrome (646265562646).

The spelling of 133131431315 in words is "one hundred thirty-three billion, one hundred thirty-one million, four hundred thirty-one thousand, three hundred fifteen".