20003321131 has 2 divisors, whose sum is σ = 20003321132. Its totient is φ = 20003321130.

The previous prime is 20003321101. The next prime is 20003321141. The reversal of 20003321131 is 13112330002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20003321131 - 2¹⁷ = 20003190059 is a prime.

It is a super-2 number, since 2×20003321131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20003321101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10001660565 + 10001660566.

It is an arithmetic number, because the mean of its divisors is an integer number (10001660566).

Almost surely, 2^20003321131 is an apocalyptic number.

20003321131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20003321131 is an equidigital number, since it uses as much as digits as its factorization.

20003321131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20003321131 its reverse (13112330002), we get a palindrome (33115651133).

The spelling of 20003321131 in words is "twenty billion, three million, three hundred twenty-one thousand, one hundred thirty-one".