121328797 has 2 divisors, whose sum is σ = 121328798. Its totient is φ = 121328796.

The previous prime is 121328789. The next prime is 121328807. The reversal of 121328797 is 797823121.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75238276 + 46090521 = 8674^2 + 6789^2 .

It is a cyclic number.

It is not a de Polignac number, because 121328797 - 2³ = 121328789 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121328297) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60664398 + 60664399.

It is an arithmetic number, because the mean of its divisors is an integer number (60664399).

Almost surely, 2^121328797 is an apocalyptic number.

It is an amenable number.

121328797 is a deficient number, since it is larger than the sum of its proper divisors (1).

121328797 is an equidigital number, since it uses as much as digits as its factorization.

121328797 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 40.

The square root of 121328797 is about 11014.9351791102. The cubic root of 121328797 is about 495.0563442988.

The spelling of 121328797 in words is "one hundred twenty-one million, three hundred twenty-eight thousand, seven hundred ninety-seven".