133020245121523 has 16 divisors (see below), whose sum is σ = 139370602484736. Its totient is φ = 126859534344000.

The previous prime is 133020245121497. The next prime is 133020245121527. The reversal of 133020245121523 is 325121542020331.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133020245121523 is a prime.

It is a super-2 number, since 2×133020245121523² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133020245121527) 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, 233270103 + ... + 233839648.

It is an arithmetic number, because the mean of its divisors is an integer number (8710662655296).

Almost surely, 2^{133020245121523} is an apocalyptic number.

133020245121523 is a deficient number, since it is larger than the sum of its proper divisors (6350357363213).

133020245121523 is an equidigital number, since it uses as much as digits as its factorization.

133020245121523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 467109954.

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 133020245121523 its reverse (325121542020331), we get a palindrome (458141787141854).

The spelling of 133020245121523 in words is "one hundred thirty-three trillion, twenty billion, two hundred forty-five million, one hundred twenty-one thousand, five hundred twenty-three".