121673803 has 2 divisors, whose sum is σ = 121673804. Its totient is φ = 121673802.

The previous prime is 121673737. The next prime is 121673807. The reversal of 121673803 is 308376121.

It is a strong prime.

It is an emirp because it is prime and its reverse (308376121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121673803 - 2¹⁷ = 121542731 is a prime.

It is equal to p_6931471 and since 121673803 and 6931471 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (121673807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60836901 + 60836902.

It is an arithmetic number, because the mean of its divisors is an integer number (60836902).

Almost surely, 2^121673803 is an apocalyptic number.

121673803 is a deficient number, since it is larger than the sum of its proper divisors (1).

121673803 is an equidigital number, since it uses as much as digits as its factorization.

121673803 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 121673803 is about 11030.5848892976. The cubic root of 121673803 is about 495.5251414230.

The spelling of 121673803 in words is "one hundred twenty-one million, six hundred seventy-three thousand, eight hundred three".