133121233462523 has 8 divisors (see below), whose sum is σ = 134728789140288. Its totient is φ = 131513765532424.

The previous prime is 133121233462519. The next prime is 133121233462579. The reversal of 133121233462523 is 325264332121331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 133121233462523 - 2² = 133121233462519 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133121233452523) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18881861 + ... + 24955302.

It is an arithmetic number, because the mean of its divisors is an integer number (16841098642536).

Almost surely, 2^{133121233462523} is an apocalyptic number.

133121233462523 is a deficient number, since it is larger than the sum of its proper divisors (1607555677765).

133121233462523 is an equidigital number, since it uses as much as digits as its factorization.

133121233462523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43873833.

The product of its digits is 466560, while the sum is 41.

Adding to 133121233462523 its reverse (325264332121331), we get a palindrome (458385565583854).

The spelling of 133121233462523 in words is "one hundred thirty-three trillion, one hundred twenty-one billion, two hundred thirty-three million, four hundred sixty-two thousand, five hundred twenty-three".