12001111322351 has 2 divisors, whose sum is σ = 12001111322352. Its totient is φ = 12001111322350.

The previous prime is 12001111322339. The next prime is 12001111322413. The reversal of 12001111322351 is 15322311110021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12001111322351 - 2¹⁸ = 12001111060207 is a prime.

It is a super-2 number, since 2×12001111322351² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001111322311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000555661175 + 6000555661176.

It is an arithmetic number, because the mean of its divisors is an integer number (6000555661176).

Almost surely, 2^{12001111322351} is an apocalyptic number.

12001111322351 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001111322351 is an equidigital number, since it uses as much as digits as its factorization.

12001111322351 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 12001111322351 its reverse (15322311110021), we get a palindrome (27323422432372).

The spelling of 12001111322351 in words is "twelve trillion, one billion, one hundred eleven million, three hundred twenty-two thousand, three hundred fifty-one".