20115224323 has 6 divisors (see below), whose sum is σ = 21229641564. Its totient is φ = 19056527964.

The previous prime is 20115224309. The next prime is 20115224369. The reversal of 20115224323 is 32342251102.

It is not a de Polignac number, because 20115224323 - 2⁹ = 20115223811 is a prime.

It is a super-2 number, since 2×20115224323² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20115224303) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 27860061 + ... + 27860782.

It is an arithmetic number, because the mean of its divisors is an integer number (3538273594).

Almost surely, 2^20115224323 is an apocalyptic number.

20115224323 is a deficient number, since it is larger than the sum of its proper divisors (1114417241).

20115224323 is an equidigital number, since it uses as much as digits as its factorization.

20115224323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55720881 (or 55720862 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 20115224323 its reverse (32342251102), we get a palindrome (52457475425).

The spelling of 20115224323 in words is "twenty billion, one hundred fifteen million, two hundred twenty-four thousand, three hundred twenty-three".