20331022098997 has 2 divisors, whose sum is σ = 20331022098998. Its totient is φ = 20331022098996.

The previous prime is 20331022098983. The next prime is 20331022099001. The reversal of 20331022098997 is 79989022013302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19157026011876 + 1173996087121 = 4376874^2 + 1083511^2 .

It is a cyclic number.

It is not a de Polignac number, because 20331022098997 - 2¹⁹ = 20331021574709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20331022198997) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10165511049498 + 10165511049499.

It is an arithmetic number, because the mean of its divisors is an integer number (10165511049499).

Almost surely, 2^{20331022098997} is an apocalyptic number.

It is an amenable number.

20331022098997 is a deficient number, since it is larger than the sum of its proper divisors (1).

20331022098997 is an equidigital number, since it uses as much as digits as its factorization.

20331022098997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2939328, while the sum is 55.

The spelling of 20331022098997 in words is "twenty trillion, three hundred thirty-one billion, twenty-two million, ninety-eight thousand, nine hundred ninety-seven".