383223128651 has 4 divisors (see below), whose sum is σ = 418061594904. Its totient is φ = 348384662400.

The previous prime is 383223128581. The next prime is 383223128699. The reversal of 383223128651 is 156821322383.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 156821322383 = 11 ⋅14256483853.

It is a cyclic number.

It is not a de Polignac number, because 383223128651 - 2²⁶ = 383156019787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (383223128051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17419233110 + ... + 17419233131.

It is an arithmetic number, because the mean of its divisors is an integer number (104515398726).

Almost surely, 2^383223128651 is an apocalyptic number.

383223128651 is a deficient number, since it is larger than the sum of its proper divisors (34838466253).

383223128651 is a wasteful number, since it uses less digits than its factorization.

383223128651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34838466252.

The product of its digits is 414720, while the sum is 44.

The spelling of 383223128651 in words is "three hundred eighty-three billion, two hundred twenty-three million, one hundred twenty-eight thousand, six hundred fifty-one".