12161003507 has 2 divisors, whose sum is σ = 12161003508. Its totient is φ = 12161003506.

The previous prime is 12161003471. The next prime is 12161003539. The reversal of 12161003507 is 70530016121.

It is a strong prime.

It is an emirp because it is prime and its reverse (70530016121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12161003507 - 2⁶ = 12161003443 is a prime.

It is not a weakly prime, because it can be changed into another prime (12161003557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6080501753 + 6080501754.

It is an arithmetic number, because the mean of its divisors is an integer number (6080501754).

Almost surely, 2^12161003507 is an apocalyptic number.

12161003507 is a deficient number, since it is larger than the sum of its proper divisors (1).

12161003507 is an equidigital number, since it uses as much as digits as its factorization.

12161003507 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

Adding to 12161003507 its reverse (70530016121), we get a palindrome (82691019628).

The spelling of 12161003507 in words is "twelve billion, one hundred sixty-one million, three thousand, five hundred seven".