20134423310215 has 16 divisors (see below), whose sum is σ = 24306205501440. Its totient is φ = 16011165209760.

The previous prime is 20134423310213. The next prime is 20134423310249. The reversal of 20134423310215 is 51201332443102.

It is not a de Polignac number, because 20134423310215 - 2¹ = 20134423310213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134423310213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13340535 + ... + 14772904.

It is an arithmetic number, because the mean of its divisors is an integer number (1519137843840).

Almost surely, 2^{20134423310215} is an apocalyptic number.

20134423310215 is a deficient number, since it is larger than the sum of its proper divisors (4171782191225).

20134423310215 is a wasteful number, since it uses less digits than its factorization.

20134423310215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28114302.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 20134423310215 its reverse (51201332443102), we get a palindrome (71335755753317).

The spelling of 20134423310215 in words is "twenty trillion, one hundred thirty-four billion, four hundred twenty-three million, three hundred ten thousand, two hundred fifteen".