121479383 has 2 divisors, whose sum is σ = 121479384. Its totient is φ = 121479382.

The previous prime is 121479377. The next prime is 121479419. The reversal of 121479383 is 383974121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-121479383 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121479983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60739691 + 60739692.

It is an arithmetic number, because the mean of its divisors is an integer number (60739692).

Almost surely, 2^121479383 is an apocalyptic number.

121479383 is a deficient number, since it is larger than the sum of its proper divisors (1).

121479383 is an equidigital number, since it uses as much as digits as its factorization.

121479383 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36288, while the sum is 38.

The square root of 121479383 is about 11021.7685967362. The cubic root of 121479383 is about 495.2610710029.

The spelling of 121479383 in words is "one hundred twenty-one million, four hundred seventy-nine thousand, three hundred eighty-three".