20124246245 has 8 divisors (see below), whose sum is σ = 25420100640. Its totient is φ = 15252060240.

The previous prime is 20124246211. The next prime is 20124246251. The reversal of 20124246245 is 54264242102.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a de Polignac number, because none of the positive numbers 2^k-20124246245 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105916991 + ... + 105917180.

It is an arithmetic number, because the mean of its divisors is an integer number (3177512580).

Almost surely, 2^20124246245 is an apocalyptic number.

It is an amenable number.

20124246245 is a deficient number, since it is larger than the sum of its proper divisors (5295854395).

20124246245 is a wasteful number, since it uses less digits than its factorization.

20124246245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211834195.

The product of its (nonzero) digits is 30720, while the sum is 32.

Adding to 20124246245 its reverse (54264242102), we get a palindrome (74388488347).

The spelling of 20124246245 in words is "twenty billion, one hundred twenty-four million, two hundred forty-six thousand, two hundred forty-five".