20310134334155 has 16 divisors (see below), whose sum is σ = 24438869827680. Its totient is φ = 16203643481088.

The previous prime is 20310134334043. The next prime is 20310134334157. The reversal of 20310134334155 is 55143343101302.

It is a cyclic number.

It is not a de Polignac number, because 20310134334155 - 2¹⁰ = 20310134333131 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20310134334157) 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 15 ways as a sum of consecutive naturals, for example, 18945689 + ... + 19988981.

It is an arithmetic number, because the mean of its divisors is an integer number (1527429364230).

Almost surely, 2^{20310134334155} is an apocalyptic number.

20310134334155 is a deficient number, since it is larger than the sum of its proper divisors (4128735493525).

20310134334155 is a wasteful number, since it uses less digits than its factorization.

20310134334155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1053950.

The product of its (nonzero) digits is 64800, while the sum is 35.

Adding to 20310134334155 its reverse (55143343101302), we get a palindrome (75453477435457).

The spelling of 20310134334155 in words is "twenty trillion, three hundred ten billion, one hundred thirty-four million, three hundred thirty-four thousand, one hundred fifty-five".