121457003 has 2 divisors, whose sum is σ = 121457004. Its totient is φ = 121457002.

The previous prime is 121456981. The next prime is 121457009. The reversal of 121457003 is 300754121.

It is a strong prime.

It is an emirp because it is prime and its reverse (300754121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 121457003 - 2¹⁸ = 121194859 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121457003.

It is not a weakly prime, because it can be changed into another prime (121457009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60728501 + 60728502.

It is an arithmetic number, because the mean of its divisors is an integer number (60728502).

Almost surely, 2^121457003 is an apocalyptic number.

121457003 is a deficient number, since it is larger than the sum of its proper divisors (1).

121457003 is an equidigital number, since it uses as much as digits as its factorization.

121457003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 121457003 is about 11020.7532864138. The cubic root of 121457003 is about 495.2306553521.

The spelling of 121457003 in words is "one hundred twenty-one million, four hundred fifty-seven thousand, three".