20110121012023 has 8 divisors (see below), whose sum is σ = 23724382392320. Its totient is φ = 16681206369240.

The previous prime is 20110121011993. The next prime is 20110121012029. The reversal of 20110121012023 is 32021012101102.

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

It is a de Polignac number, because none of the positive numbers 2^k-20110121012023 is a prime.

It is a super-3 number, since 3×20110121012023³ (a number of 41 digits) contains 333 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20110121011988 and 20110121012006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20110121012029) 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, 46336684143 + ... + 46336684576.

It is an arithmetic number, because the mean of its divisors is an integer number (2965547799040).

Almost surely, 2^{20110121012023} is an apocalyptic number.

20110121012023 is a deficient number, since it is larger than the sum of its proper divisors (3614261380297).

20110121012023 is an equidigital number, since it uses as much as digits as its factorization.

20110121012023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92673368757.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 20110121012023 its reverse (32021012101102), we get a palindrome (52131133113125).

The spelling of 20110121012023 in words is "twenty trillion, one hundred ten billion, one hundred twenty-one million, twelve thousand, twenty-three".