20011223323103 has 8 divisors (see below), whose sum is σ = 20881468873728. Its totient is φ = 19140993802744.

The previous prime is 20011223323079. The next prime is 20011223323111. The reversal of 20011223323103 is 30132332211002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20011223323103 - 2⁸ = 20011223322847 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20011223323183) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1421075 + ... + 6483972.

It is an arithmetic number, because the mean of its divisors is an integer number (2610183609216).

Almost surely, 2^{20011223323103} is an apocalyptic number.

20011223323103 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20011223323103 is a deficient number, since it is larger than the sum of its proper divisors (870245550625).

20011223323103 is a wasteful number, since it uses less digits than its factorization.

20011223323103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8015133.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 20011223323103 its reverse (30132332211002), we get a palindrome (50143555534105).

The spelling of 20011223323103 in words is "twenty trillion, eleven billion, two hundred twenty-three million, three hundred twenty-three thousand, one hundred three".