20111403010323 has 32 divisors (see below), whose sum is σ = 27429272543232. Its totient is φ = 13101490864800.

The previous prime is 20111403010319. The next prime is 20111403010331. The reversal of 20111403010323 is 32301030411102.

It is not a de Polignac number, because 20111403010323 - 2² = 20111403010319 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20111403010323.

It is not an unprimeable number, because it can be changed into a prime (20111403010333) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 235423488 + ... + 235508898.

It is an arithmetic number, because the mean of its divisors is an integer number (857164766976).

Almost surely, 2^{20111403010323} is an apocalyptic number.

20111403010323 is a deficient number, since it is larger than the sum of its proper divisors (7317869532909).

20111403010323 is a wasteful number, since it uses less digits than its factorization.

20111403010323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88095.

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

Adding to 20111403010323 its reverse (32301030411102), we get a palindrome (52412433421425).

The spelling of 20111403010323 in words is "twenty trillion, one hundred eleven billion, four hundred three million, ten thousand, three hundred twenty-three".