20123232258 has 8 divisors (see below), whose sum is σ = 40246464528. Its totient is φ = 6707744084.

The previous prime is 20123232257. The next prime is 20123232271. The reversal of 20123232258 is 85223232102.

It is a sphenic number, since it is the product of 3 distinct primes.

20123232258 is an admirable number.

It is not an unprimeable number, because it can be changed into a prime (20123232257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1676936016 + ... + 1676936027.

It is an arithmetic number, because the mean of its divisors is an integer number (5030808066).

Almost surely, 2^20123232258 is an apocalyptic number.

20123232258 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123232258 is a wasteful number, since it uses less digits than its factorization.

20123232258 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3353872048.

The product of its (nonzero) digits is 11520, while the sum is 30.

The spelling of 20123232258 in words is "twenty billion, one hundred twenty-three million, two hundred thirty-two thousand, two hundred fifty-eight".