121089377 has 2 divisors, whose sum is σ = 121089378. Its totient is φ = 121089376.

The previous prime is 121089373. The next prime is 121089403. The reversal of 121089377 is 773980121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 120802081 + 287296 = 10991^2 + 536^2 .

It is an emirp because it is prime and its reverse (773980121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121089377 - 2² = 121089373 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121089377.

It is not a weakly prime, because it can be changed into another prime (121089373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60544688 + 60544689.

It is an arithmetic number, because the mean of its divisors is an integer number (60544689).

Almost surely, 2^121089377 is an apocalyptic number.

It is an amenable number.

121089377 is a deficient number, since it is larger than the sum of its proper divisors (1).

121089377 is an equidigital number, since it uses as much as digits as its factorization.

121089377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 121089377 is about 11004.0618409749. The cubic root of 121089377 is about 494.7304957457.

The spelling of 121089377 in words is "one hundred twenty-one million, eighty-nine thousand, three hundred seventy-seven".