20233232401021 has 4 divisors (see below), whose sum is σ = 20233262940444. Its totient is φ = 20233201861600.

The previous prime is 20233232401009. The next prime is 20233232401061. The reversal of 20233232401021 is 12010423233202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6553139208100 + 13680093192921 = 2559910^2 + 3698661^2 .

It is a cyclic number.

It is not a de Polignac number, because 20233232401021 - 2¹³ = 20233232392829 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20233232401061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14253370 + ... + 15608491.

It is an arithmetic number, because the mean of its divisors is an integer number (5058315735111).

Almost surely, 2^{20233232401021} is an apocalyptic number.

It is an amenable number.

20233232401021 is a deficient number, since it is larger than the sum of its proper divisors (30539423).

20233232401021 is an equidigital number, since it uses as much as digits as its factorization.

20233232401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30539422.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 20233232401021 its reverse (12010423233202), we get a palindrome (32243655634223).

The spelling of 20233232401021 in words is "twenty trillion, two hundred thirty-three billion, two hundred thirty-two million, four hundred one thousand, twenty-one".