20110321023 has 16 divisors (see below), whose sum is σ = 29807855616. Its totient is φ = 11976369120.

The previous prime is 20110321019. The next prime is 20110321027. The reversal of 20110321023 is 32012301102.

It is an interprime number because it is at equal distance from previous prime (20110321019) and next prime (20110321027).

It is not a de Polignac number, because 20110321023 - 2² = 20110321019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20110320993 and 20110321011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110321027) 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, 8315715 + ... + 8318132.

It is an arithmetic number, because the mean of its divisors is an integer number (1862990976).

Almost surely, 2^20110321023 is an apocalyptic number.

20110321023 is a deficient number, since it is larger than the sum of its proper divisors (9697534593).

20110321023 is a wasteful number, since it uses less digits than its factorization.

20110321023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16633894.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20110321023 its reverse (32012301102), we get a palindrome (52122622125).

The spelling of 20110321023 in words is "twenty billion, one hundred ten million, three hundred twenty-one thousand, twenty-three".