121324691 has 2 divisors, whose sum is σ = 121324692. Its totient is φ = 121324690.

The previous prime is 121324681. The next prime is 121324703. The reversal of 121324691 is 196423121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121324691 is a prime.

It is not a weakly prime, because it can be changed into another prime (121324681) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60662345 + 60662346.

It is an arithmetic number, because the mean of its divisors is an integer number (60662346).

Almost surely, 2^121324691 is an apocalyptic number.

121324691 is a deficient number, since it is larger than the sum of its proper divisors (1).

121324691 is an equidigital number, since it uses as much as digits as its factorization.

121324691 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 29.

The square root of 121324691 is about 11014.7487942304. The cubic root of 121324691 is about 495.0507596826.

The spelling of 121324691 in words is "one hundred twenty-one million, three hundred twenty-four thousand, six hundred ninety-one".