1420122403 has 4 divisors (see below), whose sum is σ = 1622997040. Its totient is φ = 1217247768.

The previous prime is 1420122401. The next prime is 1420122433. The reversal of 1420122403 is 3042210241.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1420122403 - 2¹ = 1420122401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1420122401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 101437308 + ... + 101437321.

It is an arithmetic number, because the mean of its divisors is an integer number (405749260).

Almost surely, 2^1420122403 is an apocalyptic number.

1420122403 is a deficient number, since it is larger than the sum of its proper divisors (202874637).

1420122403 is an equidigital number, since it uses as much as digits as its factorization.

1420122403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202874636.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 1420122403 is about 37684.5114470123. The cubic root of 1420122403 is about 1124.0231594266.

Adding to 1420122403 its reverse (3042210241), we get a palindrome (4462332644).

The spelling of 1420122403 in words is "one billion, four hundred twenty million, one hundred twenty-two thousand, four hundred three".