133655730123 has 16 divisors (see below), whose sum is σ = 189004260096. Its totient is φ = 83832529440.

The previous prime is 133655730121. The next prime is 133655730157. The reversal of 133655730123 is 321037556331.

It is not a de Polignac number, because 133655730123 - 2¹ = 133655730121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (133655730121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15873165 + ... + 15881582.

It is an arithmetic number, because the mean of its divisors is an integer number (11812766256).

Almost surely, 2^133655730123 is an apocalyptic number.

133655730123 is a deficient number, since it is larger than the sum of its proper divisors (55348529973).

133655730123 is a wasteful number, since it uses less digits than its factorization.

133655730123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31754834.

The product of its (nonzero) digits is 170100, while the sum is 39.

The spelling of 133655730123 in words is "one hundred thirty-three billion, six hundred fifty-five million, seven hundred thirty thousand, one hundred twenty-three".