20003120032331 has 4 divisors (see below), whose sum is σ = 20056747700352. Its totient is φ = 19949492364312.

The previous prime is 20003120032279. The next prime is 20003120032339. The reversal of 20003120032331 is 13323002130002.

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

It is a cyclic number.

It is not a de Polignac number, because 20003120032331 - 2⁶ = 20003120032267 is a prime.

It is a super-2 number, since 2×20003120032331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20003120032339) 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, 26813833451 + ... + 26813834196.

It is an arithmetic number, because the mean of its divisors is an integer number (5014186925088).

Almost surely, 2^{20003120032331} is an apocalyptic number.

20003120032331 is a deficient number, since it is larger than the sum of its proper divisors (53627668021).

20003120032331 is an equidigital number, since it uses as much as digits as its factorization.

20003120032331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53627668020.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 20003120032331 its reverse (13323002130002), we get a palindrome (33326122162333).

The spelling of 20003120032331 in words is "twenty trillion, three billion, one hundred twenty million, thirty-two thousand, three hundred thirty-one".