20123010254 has 16 divisors (see below), whose sum is σ = 31508522016. Its totient is φ = 9629085600.

The previous prime is 20123010251. The next prime is 20123010311. The reversal of 20123010254 is 45201032102.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123010251) 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 7 ways as a sum of consecutive naturals, for example, 2224442 + ... + 2233469.

It is an arithmetic number, because the mean of its divisors is an integer number (1969282626).

Almost surely, 2^20123010254 is an apocalyptic number.

20123010254 is a deficient number, since it is larger than the sum of its proper divisors (11385511762).

20123010254 is a wasteful number, since it uses less digits than its factorization.

20123010254 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4458011.

The product of its (nonzero) digits is 480, while the sum is 20.

Adding to 20123010254 its reverse (45201032102), we get a palindrome (65324042356).

The spelling of 20123010254 in words is "twenty billion, one hundred twenty-three million, ten thousand, two hundred fifty-four".