121071403 has 2 divisors, whose sum is σ = 121071404. Its totient is φ = 121071402.

The previous prime is 121071343. The next prime is 121071407. The reversal of 121071403 is 304170121.

It is a strong prime.

It is an emirp because it is prime and its reverse (304170121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121071403 - 2²⁵ = 87516971 is a prime.

It is not a weakly prime, because it can be changed into another prime (121071407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60535701 + 60535702.

It is an arithmetic number, because the mean of its divisors is an integer number (60535702).

Almost surely, 2^121071403 is an apocalyptic number.

121071403 is a deficient number, since it is larger than the sum of its proper divisors (1).

121071403 is an equidigital number, since it uses as much as digits as its factorization.

121071403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 121071403 is about 11003.2451122385. The cubic root of 121071403 is about 494.7060159601.

The spelling of 121071403 in words is "one hundred twenty-one million, seventy-one thousand, four hundred three".