133013203123 has 4 divisors (see below), whose sum is σ = 133829235208. Its totient is φ = 132197171040.

The previous prime is 133013203121. The next prime is 133013203151. The reversal of 133013203123 is 321302310331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321302310331 = 125753 ⋅2555027.

It is a cyclic number.

It is not a de Polignac number, because 133013203123 - 2¹ = 133013203121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133013203094 and 133013203103.

It is not an unprimeable number, because it can be changed into a prime (133013203121) 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, 408015798 + ... + 408016123.

It is an arithmetic number, because the mean of its divisors is an integer number (33457308802).

Almost surely, 2^133013203123 is an apocalyptic number.

133013203123 is a deficient number, since it is larger than the sum of its proper divisors (816032085).

133013203123 is an equidigital number, since it uses as much as digits as its factorization.

133013203123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816032084.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 133013203123 its reverse (321302310331), we get a palindrome (454315513454).

The spelling of 133013203123 in words is "one hundred thirty-three billion, thirteen million, two hundred three thousand, one hundred twenty-three".