20301232123 has 32 divisors (see below), whose sum is σ = 22190837760. Its totient is φ = 18529271040.

The previous prime is 20301232069. The next prime is 20301232129. The reversal of 20301232123 is 32123210302.

It is not a de Polignac number, because 20301232123 - 2⁹ = 20301231611 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20301232123.

It is not an unprimeable number, because it can be changed into a prime (20301232129) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5754186 + ... + 5757712.

It is an arithmetic number, because the mean of its divisors is an integer number (693463680).

Almost surely, 2^20301232123 is an apocalyptic number.

20301232123 is a deficient number, since it is larger than the sum of its proper divisors (1889605637).

20301232123 is a wasteful number, since it uses less digits than its factorization.

20301232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3747.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 20301232123 its reverse (32123210302), we get a palindrome (52424442425).

The spelling of 20301232123 in words is "twenty billion, three hundred one million, two hundred thirty-two thousand, one hundred twenty-three".