20302312097 has 2 divisors, whose sum is σ = 20302312098. Its totient is φ = 20302312096.

The previous prime is 20302312087. The next prime is 20302312103. The reversal of 20302312097 is 79021320302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16866476641 + 3435835456 = 129871^2 + 58616^2 .

It is a cyclic number.

It is not a de Polignac number, because 20302312097 - 2¹² = 20302308001 is a prime.

It is not a weakly prime, because it can be changed into another prime (20302312087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10151156048 + 10151156049.

It is an arithmetic number, because the mean of its divisors is an integer number (10151156049).

Almost surely, 2^20302312097 is an apocalyptic number.

It is an amenable number.

20302312097 is a deficient number, since it is larger than the sum of its proper divisors (1).

20302312097 is an equidigital number, since it uses as much as digits as its factorization.

20302312097 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4536, while the sum is 29.

Adding to 20302312097 its reverse (79021320302), we get a palindrome (99323632399).

The spelling of 20302312097 in words is "twenty billion, three hundred two million, three hundred twelve thousand, ninety-seven".