20124254303 has 4 divisors (see below), whose sum is σ = 20166267840. Its totient is φ = 20082240768.

The previous prime is 20124254299. The next prime is 20124254323. The reversal of 20124254303 is 30345242102.

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 20124254303 - 2² = 20124254299 is a prime.

It is a super-2 number, since 2×20124254303² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20124254323) 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, 21006050 + ... + 21007007.

It is an arithmetic number, because the mean of its divisors is an integer number (5041566960).

Almost surely, 2^20124254303 is an apocalyptic number.

20124254303 is a deficient number, since it is larger than the sum of its proper divisors (42013537).

20124254303 is an equidigital number, since it uses as much as digits as its factorization.

20124254303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42013536.

The product of its (nonzero) digits is 5760, while the sum is 26.

Adding to 20124254303 its reverse (30345242102), we get a palindrome (50469496405).

The spelling of 20124254303 in words is "twenty billion, one hundred twenty-four million, two hundred fifty-four thousand, three hundred three".