121276427 has 2 divisors, whose sum is σ = 121276428. Its totient is φ = 121276426.

The previous prime is 121276399. The next prime is 121276439. The reversal of 121276427 is 724672121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121276427 - 2¹⁰ = 121275403 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 121276393 and 121276402.

It is not a weakly prime, because it can be changed into another prime (121270427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60638213 + 60638214.

It is an arithmetic number, because the mean of its divisors is an integer number (60638214).

Almost surely, 2^121276427 is an apocalyptic number.

121276427 is a deficient number, since it is larger than the sum of its proper divisors (1).

121276427 is an equidigital number, since it uses as much as digits as its factorization.

121276427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9408, while the sum is 32.

The square root of 121276427 is about 11012.5576956491. The cubic root of 121276427 is about 494.9851058335.

The spelling of 121276427 in words is "one hundred twenty-one million, two hundred seventy-six thousand, four hundred twenty-seven".