120553403 has 2 divisors, whose sum is σ = 120553404. Its totient is φ = 120553402.

The previous prime is 120553399. The next prime is 120553427. The reversal of 120553403 is 304355021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120553403 - 2² = 120553399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (120552403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60276701 + 60276702.

It is an arithmetic number, because the mean of its divisors is an integer number (60276702).

Almost surely, 2^120553403 is an apocalyptic number.

120553403 is a deficient number, since it is larger than the sum of its proper divisors (1).

120553403 is an equidigital number, since it uses as much as digits as its factorization.

120553403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800, while the sum is 23.

The square root of 120553403 is about 10979.6813706045. The cubic root of 120553403 is about 493.9994795844. Note that the first 3 decimals are identical.

The spelling of 120553403 in words is "one hundred twenty million, five hundred fifty-three thousand, four hundred three".