20010321103023 has 24 divisors (see below), whose sum is σ = 30671678643840. Its totient is φ = 12543930096720.

The previous prime is 20010321103021. The next prime is 20010321103127. The reversal of 20010321103023 is 32030112301002.

20010321103023 is a `hidden beast` number, since 20 + 0 + 10 + 321 + 10 + 302 + 3 = 666.

It is not a de Polignac number, because 20010321103023 - 2¹ = 20010321103021 is a prime.

It is a super-2 number, since 2×20010321103023² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20010321102987 and 20010321103005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20010321103021) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 819209973 + ... + 819234398.

It is an arithmetic number, because the mean of its divisors is an integer number (1277986610160).

Almost surely, 2^{20010321103023} is an apocalyptic number.

20010321103023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20010321103023 is a deficient number, since it is larger than the sum of its proper divisors (10661357540817).

20010321103023 is a wasteful number, since it uses less digits than its factorization.

20010321103023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1638444459 (or 1638444456 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 20010321103023 its reverse (32030112301002), we get a palindrome (52040433404025).

The spelling of 20010321103023 in words is "twenty trillion, ten billion, three hundred twenty-one million, one hundred three thousand, twenty-three".