133133420123 has 4 divisors (see below), whose sum is σ = 145236458328. Its totient is φ = 121030381920.

The previous prime is 133133420099. The next prime is 133133420159. The reversal of 133133420123 is 321024331331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321024331331 = 11 ⋅29184030121.

It is a cyclic number.

It is not a de Polignac number, because 133133420123 - 2²⁴ = 133116642907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 133133420092 and 133133420101.

It is not an unprimeable number, because it can be changed into a prime (133133420183) 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, 6051519086 + ... + 6051519107.

It is an arithmetic number, because the mean of its divisors is an integer number (36309114582).

Almost surely, 2^133133420123 is an apocalyptic number.

133133420123 is a deficient number, since it is larger than the sum of its proper divisors (12103038205).

133133420123 is a wasteful number, since it uses less digits than its factorization.

133133420123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12103038204.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 133133420123 its reverse (321024331331), we get a palindrome (454157751454).

The spelling of 133133420123 in words is "one hundred thirty-three billion, one hundred thirty-three million, four hundred twenty thousand, one hundred twenty-three".