20315402223 has 8 divisors (see below), whose sum is σ = 27089580336. Its totient is φ = 13542412800.

The previous prime is 20315402207. The next prime is 20315402227. The reversal of 20315402223 is 32220451302.

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

It is not a de Polignac number, because 20315402223 - 2⁴ = 20315402207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20315402193 and 20315402202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20315402227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 256498 + ... + 326223.

It is an arithmetic number, because the mean of its divisors is an integer number (3386197542).

Almost surely, 2^20315402223 is an apocalyptic number.

20315402223 is a deficient number, since it is larger than the sum of its proper divisors (6774178113).

20315402223 is a wasteful number, since it uses less digits than its factorization.

20315402223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 594345.

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

Adding to 20315402223 its reverse (32220451302), we get a palindrome (52535853525).

The spelling of 20315402223 in words is "twenty billion, three hundred fifteen million, four hundred two thousand, two hundred twenty-three".