121950427 has 2 divisors, whose sum is σ = 121950428. Its totient is φ = 121950426.

The previous prime is 121950421. The next prime is 121950443. The reversal of 121950427 is 724059121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121950427 is a prime.

It is not a weakly prime, because it can be changed into another prime (121950421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60975213 + 60975214.

It is an arithmetic number, because the mean of its divisors is an integer number (60975214).

Almost surely, 2^121950427 is an apocalyptic number.

121950427 is a deficient number, since it is larger than the sum of its proper divisors (1).

121950427 is an equidigital number, since it uses as much as digits as its factorization.

121950427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 121950427 is about 11043.1167249106. The cubic root of 121950427 is about 495.9003807802.

The spelling of 121950427 in words is "one hundred twenty-one million, nine hundred fifty thousand, four hundred twenty-seven".