12120751 has 2 divisors, whose sum is σ = 12120752. Its totient is φ = 12120750.

The previous prime is 12120749. The next prime is 12120763. The reversal of 12120751 is 15702121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120751 - 2¹ = 12120749 is a prime.

Together with 12120749, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12120781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060375 + 6060376.

It is an arithmetic number, because the mean of its divisors is an integer number (6060376).

Almost surely, 2^12120751 is an apocalyptic number.

12120751 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120751 is an equidigital number, since it uses as much as digits as its factorization.

12120751 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 140, while the sum is 19.

The square root of 12120751 is about 3481.4868949919. The cubic root of 12120751 is about 229.7082058955.

Adding to 12120751 its reverse (15702121), we get a palindrome (27822872).

The spelling of 12120751 in words is "twelve million, one hundred twenty thousand, seven hundred fifty-one".