20342043215 has 8 divisors (see below), whose sum is σ = 26288179008. Its totient is φ = 15021816480.

The previous prime is 20342043191. The next prime is 20342043347. The reversal of 20342043215 is 51234024302.

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

It is not a de Polignac number, because 20342043215 - 2¹² = 20342039119 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, 156477191 + ... + 156477320.

It is an arithmetic number, because the mean of its divisors is an integer number (3286022376).

Almost surely, 2^20342043215 is an apocalyptic number.

20342043215 is a deficient number, since it is larger than the sum of its proper divisors (5946135793).

20342043215 is a wasteful number, since it uses less digits than its factorization.

20342043215 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 312954529.

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

Adding to 20342043215 its reverse (51234024302), we get a palindrome (71576067517).

The spelling of 20342043215 in words is "twenty billion, three hundred forty-two million, forty-three thousand, two hundred fifteen".