20023100230121 has 8 divisors (see below), whose sum is σ = 20084017149000. Its totient is φ = 19962203564160.

The previous prime is 20023100230099. The next prime is 20023100230163. The reversal of 20023100230121 is 12103200132002.

It can be written as a sum of positive squares in 4 ways, for example, as 8966072035600 + 11057028194521 = 2994340^2 + 3325211^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20023100230121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20023100230121.

It is not an unprimeable number, because it can be changed into a prime (20023100230921) 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, 3081740 + ... + 7038701.

It is an arithmetic number, because the mean of its divisors is an integer number (2510502143625).

Almost surely, 2^{20023100230121} is an apocalyptic number.

It is an amenable number.

20023100230121 is a deficient number, since it is larger than the sum of its proper divisors (60916918879).

20023100230121 is a wasteful number, since it uses less digits than its factorization.

20023100230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10126459.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 20023100230121 its reverse (12103200132002), we get a palindrome (32126300362123).

The spelling of 20023100230121 in words is "twenty trillion, twenty-three billion, one hundred million, two hundred thirty thousand, one hundred twenty-one".