100722403 has 2 divisors, whose sum is σ = 100722404. Its totient is φ = 100722402.

The previous prime is 100722367. The next prime is 100722421. The reversal of 100722403 is 304227001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 100722403 - 2⁹ = 100721891 is a prime.

It is not a weakly prime, because it can be changed into another prime (100722443) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50361201 + 50361202.

It is an arithmetic number, because the mean of its divisors is an integer number (50361202).

Almost surely, 2^100722403 is an apocalyptic number.

100722403 is a deficient number, since it is larger than the sum of its proper divisors (1).

100722403 is an equidigital number, since it uses as much as digits as its factorization.

100722403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 100722403 is about 10036.0551513032. The cubic root of 100722403 is about 465.2739019130.

Adding to 100722403 its reverse (304227001), we get a palindrome (404949404).

The spelling of 100722403 in words is "one hundred million, seven hundred twenty-two thousand, four hundred three".