20123003313021 has 8 divisors (see below), whose sum is σ = 30663624096064. Its totient is φ = 11498859036000.

The previous prime is 20123003313001. The next prime is 20123003313041. The reversal of 20123003313021 is 12031330032102.

It is an interprime number because it is at equal distance from previous prime (20123003313001) and next prime (20123003313041).

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

It is not a de Polignac number, because 20123003313021 - 2¹⁰ = 20123003311997 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 958238253001 = 20123003313021 / (2 + 0 + 1 + 2 + 3 + 0 + 0 + 3 + 3 + 1 + 3 + 0 + 2 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123003313001) 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, 479119126480 + ... + 479119126521.

It is an arithmetic number, because the mean of its divisors is an integer number (3832953012008).

Almost surely, 2^{20123003313021} is an apocalyptic number.

20123003313021 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20123003313021 is a deficient number, since it is larger than the sum of its proper divisors (10540620783043).

20123003313021 is an equidigital number, since it uses as much as digits as its factorization.

20123003313021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 958238253011.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20123003313021 its reverse (12031330032102), we get a palindrome (32154333345123).

The spelling of 20123003313021 in words is "twenty trillion, one hundred twenty-three billion, three million, three hundred thirteen thousand, twenty-one".