121763903 has 2 divisors, whose sum is σ = 121763904. Its totient is φ = 121763902.

The previous prime is 121763899. The next prime is 121763923. The reversal of 121763903 is 309367121.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 121763903 - 2² = 121763899 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121763903.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121763923) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60881951 + 60881952.

It is an arithmetic number, because the mean of its divisors is an integer number (60881952).

Almost surely, 2^121763903 is an apocalyptic number.

121763903 is a deficient number, since it is larger than the sum of its proper divisors (1).

121763903 is an equidigital number, since it uses as much as digits as its factorization.

121763903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6804, while the sum is 32.

The square root of 121763903 is about 11034.6682324391. The cubic root of 121763903 is about 495.6474241119.

The spelling of 121763903 in words is "one hundred twenty-one million, seven hundred sixty-three thousand, nine hundred three".