121036397 has 2 divisors, whose sum is σ = 121036398. Its totient is φ = 121036396.

The previous prime is 121036393. The next prime is 121036411. The reversal of 121036397 is 793630121.

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., 78251716 + 42784681 = 8846^2 + 6541^2 .

It is an emirp because it is prime and its reverse (793630121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121036397 - 2² = 121036393 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121036393) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60518198 + 60518199.

It is an arithmetic number, because the mean of its divisors is an integer number (60518199).

Almost surely, 2^121036397 is an apocalyptic number.

It is an amenable number.

121036397 is a deficient number, since it is larger than the sum of its proper divisors (1).

121036397 is an equidigital number, since it uses as much as digits as its factorization.

121036397 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 121036397 is about 11001.6542846974. The cubic root of 121036397 is about 494.6583323958.

The spelling of 121036397 in words is "one hundred twenty-one million, thirty-six thousand, three hundred ninety-seven".