133013201023123 has 4 divisors (see below), whose sum is σ = 133013224601568. Its totient is φ = 133013177444680.

The previous prime is 133013201023121. The next prime is 133013201023147. The reversal of 133013201023123 is 321320102310331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133013201023123 - 2¹ = 133013201023121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (133013201023121) 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, 2228790 + ... + 16461892.

It is an arithmetic number, because the mean of its divisors is an integer number (33253306150392).

Almost surely, 2^{133013201023123} is an apocalyptic number.

133013201023123 is a deficient number, since it is larger than the sum of its proper divisors (23578445).

133013201023123 is an equidigital number, since it uses as much as digits as its factorization.

133013201023123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23578444.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 133013201023123 its reverse (321320102310331), we get a palindrome (454333303333454).

The spelling of 133013201023123 in words is "one hundred thirty-three trillion, thirteen billion, two hundred one million, twenty-three thousand, one hundred twenty-three".