20303032011123 has 4 divisors (see below), whose sum is σ = 27070709348168. Its totient is φ = 13535354674080.

The previous prime is 20303032011043. The next prime is 20303032011127. The reversal of 20303032011123 is 32111023030302.

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

It is not a de Polignac number, because 20303032011123 - 2⁸ = 20303032010867 is a prime.

It is a super-2 number, since 2×20303032011123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20303032011123.

It is not an unprimeable number, because it can be changed into a prime (20303032011127) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3383838668518 + ... + 3383838668523.

It is an arithmetic number, because the mean of its divisors is an integer number (6767677337042).

Almost surely, 2^{20303032011123} is an apocalyptic number.

20303032011123 is a deficient number, since it is larger than the sum of its proper divisors (6767677337045).

20303032011123 is an equidigital number, since it uses as much as digits as its factorization.

20303032011123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6767677337044.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20303032011123 its reverse (32111023030302), we get a palindrome (52414055041425).

The spelling of 20303032011123 in words is "twenty trillion, three hundred three billion, thirty-two million, eleven thousand, one hundred twenty-three".