12102420073 has 2 divisors, whose sum is σ = 12102420074. Its totient is φ = 12102420072.

The previous prime is 12102420013. The next prime is 12102420103. The reversal of 12102420073 is 37002420121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9161744089 + 2940675984 = 95717^2 + 54228^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12102420073 is a prime.

It is not a weakly prime, because it can be changed into another prime (12102420013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6051210036 + 6051210037.

It is an arithmetic number, because the mean of its divisors is an integer number (6051210037).

Almost surely, 2^12102420073 is an apocalyptic number.

It is an amenable number.

12102420073 is a deficient number, since it is larger than the sum of its proper divisors (1).

12102420073 is an equidigital number, since it uses as much as digits as its factorization.

12102420073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 12102420073 its reverse (37002420121), we get a palindrome (49104840194).

The spelling of 12102420073 in words is "twelve billion, one hundred two million, four hundred twenty thousand, seventy-three".