20201301321123 has 16 divisors (see below), whose sum is σ = 30713290697376. Its totient is φ = 11700301217280.

The previous prime is 20201301321121. The next prime is 20201301321127. The reversal of 20201301321123 is 32112310310202.

It is not a de Polignac number, because 20201301321123 - 2¹ = 20201301321121 is a prime.

It is a super-2 number, since 2×20201301321123² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20201301321123.

It is not an unprimeable number, because it can be changed into a prime (20201301321121) 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, 15234766548 + ... + 15234767873.

It is an arithmetic number, because the mean of its divisors is an integer number (1919580668586).

Almost surely, 2^{20201301321123} is an apocalyptic number.

20201301321123 is a deficient number, since it is larger than the sum of its proper divisors (10511989376253).

20201301321123 is a wasteful number, since it uses less digits than its factorization.

20201301321123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30469534454.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20201301321123 its reverse (32112310310202), we get a palindrome (52313611631325).

The spelling of 20201301321123 in words is "twenty trillion, two hundred one billion, three hundred one million, three hundred twenty-one thousand, one hundred twenty-three".