20210034523 has 4 divisors (see below), whose sum is σ = 23097182320. Its totient is φ = 17322886728.

The previous prime is 20210034491. The next prime is 20210034539. The reversal of 20210034523 is 32543001202.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 20210034523 - 2⁵ = 20210034491 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20210034494 and 20210034503.

It is not an unprimeable number, because it can be changed into a prime (20210434523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1443573888 + ... + 1443573901.

It is an arithmetic number, because the mean of its divisors is an integer number (5774295580).

Almost surely, 2^20210034523 is an apocalyptic number.

20210034523 is a deficient number, since it is larger than the sum of its proper divisors (2887147797).

20210034523 is an equidigital number, since it uses as much as digits as its factorization.

20210034523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2887147796.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 20210034523 its reverse (32543001202), we get a palindrome (52753035725).

The spelling of 20210034523 in words is "twenty billion, two hundred ten million, thirty-four thousand, five hundred twenty-three".