11973107501 has 2 divisors, whose sum is σ = 11973107502. Its totient is φ = 11973107500.

The previous prime is 11973107473. The next prime is 11973107521. The reversal of 11973107501 is 10570137911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6151264900 + 5821842601 = 78430^2 + 76301^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11973107501 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11973107521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5986553750 + 5986553751.

It is an arithmetic number, because the mean of its divisors is an integer number (5986553751).

Almost surely, 2^11973107501 is an apocalyptic number.

It is an amenable number.

11973107501 is a deficient number, since it is larger than the sum of its proper divisors (1).

11973107501 is an equidigital number, since it uses as much as digits as its factorization.

11973107501 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6615, while the sum is 35.

The spelling of 11973107501 in words is "eleven billion, nine hundred seventy-three million, one hundred seven thousand, five hundred one".