20401010023 has 8 divisors (see below), whose sum is σ = 20535363648. Its totient is φ = 20266712544.

The previous prime is 20401010009. The next prime is 20401010059. The reversal of 20401010023 is 32001010402.

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 20401010023 - 2⁵ = 20401009991 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20401009985 and 20401010012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20401010093) 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, 915765 + ... + 937777.

It is an arithmetic number, because the mean of its divisors is an integer number (2566920456).

Almost surely, 2^20401010023 is an apocalyptic number.

20401010023 is a deficient number, since it is larger than the sum of its proper divisors (134353625).

20401010023 is a wasteful number, since it uses less digits than its factorization.

20401010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28073.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20401010023 its reverse (32001010402), we get a palindrome (52402020425).

The spelling of 20401010023 in words is "twenty billion, four hundred one million, ten thousand, twenty-three".