121148903 has 2 divisors, whose sum is σ = 121148904. Its totient is φ = 121148902.

The previous prime is 121148873. The next prime is 121148927. The reversal of 121148903 is 309841121.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 121148903 - 2²⁰ = 120100327 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121148003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60574451 + 60574452.

It is an arithmetic number, because the mean of its divisors is an integer number (60574452).

Almost surely, 2^121148903 is an apocalyptic number.

121148903 is a deficient number, since it is larger than the sum of its proper divisors (1).

121148903 is an equidigital number, since it uses as much as digits as its factorization.

121148903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 121148903 is about 11006.7662371834. The cubic root of 121148903 is about 494.8115502084.

The spelling of 121148903 in words is "one hundred twenty-one million, one hundred forty-eight thousand, nine hundred three".