20424304350123 has 16 divisors (see below), whose sum is σ = 27968797298976. Its totient is φ = 13248017164800.

The previous prime is 20424304350119. The next prime is 20424304350127. The reversal of 20424304350123 is 32105340342402.

It is an interprime number because it is at equal distance from previous prime (20424304350119) and next prime (20424304350127).

It is not a de Polignac number, because 20424304350123 - 2² = 20424304350119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20424304350127) 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, 7199173 + ... + 9626873.

It is an arithmetic number, because the mean of its divisors is an integer number (1748049831186).

Almost surely, 2^{20424304350123} is an apocalyptic number.

20424304350123 is a deficient number, since it is larger than the sum of its proper divisors (7544492948853).

20424304350123 is a wasteful number, since it uses less digits than its factorization.

20424304350123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2503534.

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 20424304350123 its reverse (32105340342402), we get a palindrome (52529644692525).

The spelling of 20424304350123 in words is "twenty trillion, four hundred twenty-four billion, three hundred four million, three hundred fifty thousand, one hundred twenty-three".