20331103489 has 2 divisors, whose sum is σ = 20331103490. Its totient is φ = 20331103488.

The previous prime is 20331103477. The next prime is 20331103543. The reversal of 20331103489 is 98430113302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14500253889 + 5830849600 = 120417^2 + 76360^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331103489 - 2²¹ = 20329006337 is a prime.

It is not a weakly prime, because it can be changed into another prime (20331103459) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165551744 + 10165551745.

It is an arithmetic number, because the mean of its divisors is an integer number (10165551745).

Almost surely, 2^20331103489 is an apocalyptic number.

It is an amenable number.

20331103489 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331103489 is an equidigital number, since it uses as much as digits as its factorization.

20331103489 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 15552, while the sum is 34.

The spelling of 20331103489 in words is "twenty billion, three hundred thirty-one million, one hundred three thousand, four hundred eighty-nine".