12045971501 has 2 divisors, whose sum is σ = 12045971502. Its totient is φ = 12045971500.

The previous prime is 12045971491. The next prime is 12045971513. The reversal of 12045971501 is 10517954021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11990469001 + 55502500 = 109501^2 + 7450^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12045971501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12045971551) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6022985750 + 6022985751.

It is an arithmetic number, because the mean of its divisors is an integer number (6022985751).

Almost surely, 2^12045971501 is an apocalyptic number.

It is an amenable number.

12045971501 is a deficient number, since it is larger than the sum of its proper divisors (1).

12045971501 is an equidigital number, since it uses as much as digits as its factorization.

12045971501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12600, while the sum is 35.

The spelling of 12045971501 in words is "twelve billion, forty-five million, nine hundred seventy-one thousand, five hundred one".