20454103023 has 4 divisors (see below), whose sum is σ = 27272137368. Its totient is φ = 13636068680.

The previous prime is 20454102967. The next prime is 20454103051. The reversal of 20454103023 is 32030145402.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20454103023 - 2¹³ = 20454094831 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20454102984 and 20454103002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20454103093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3409017168 + ... + 3409017173.

It is an arithmetic number, because the mean of its divisors is an integer number (6818034342).

Almost surely, 2^20454103023 is an apocalyptic number.

20454103023 is a deficient number, since it is larger than the sum of its proper divisors (6818034345).

20454103023 is an equidigital number, since it uses as much as digits as its factorization.

20454103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6818034344.

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 20454103023 its reverse (32030145402), we get a palindrome (52484248425).

The spelling of 20454103023 in words is "twenty billion, four hundred fifty-four million, one hundred three thousand, twenty-three".