133315312379 has 2 divisors, whose sum is σ = 133315312380. Its totient is φ = 133315312378.

The previous prime is 133315312307. The next prime is 133315312397. The reversal of 133315312379 is 973213513331.

Together with next prime (133315312397) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133315312379 - 2¹² = 133315308283 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (133315312079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66657656189 + 66657656190.

It is an arithmetic number, because the mean of its divisors is an integer number (66657656190).

Almost surely, 2^133315312379 is an apocalyptic number.

133315312379 is a deficient number, since it is larger than the sum of its proper divisors (1).

133315312379 is an equidigital number, since it uses as much as digits as its factorization.

133315312379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 153090, while the sum is 41.

The spelling of 133315312379 in words is "one hundred thirty-three billion, three hundred fifteen million, three hundred twelve thousand, three hundred seventy-nine".