4123421403 has 32 divisors (see below), whose sum is σ = 5712537600. Its totient is φ = 2643895296.

The previous prime is 4123421387. The next prime is 4123421411. The reversal of 4123421403 is 3041243214.

It is not a de Polignac number, because 4123421403 - 2⁴ = 4123421387 is a prime.

It is not an unprimeable number, because it can be changed into a prime (4123421483) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2864758 + ... + 2866196.

It is an arithmetic number, because the mean of its divisors is an integer number (178516800).

Almost surely, 2^4123421403 is an apocalyptic number.

4123421403 is a gapful number since it is divisible by the number (43) formed by its first and last digit.

4123421403 is a deficient number, since it is larger than the sum of its proper divisors (1589116197).

4123421403 is a wasteful number, since it uses less digits than its factorization.

4123421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1811.

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 4123421403 is about 64213.8723563686. The cubic root of 4123421403 is about 1603.5625569125.

Adding to 4123421403 its reverse (3041243214), we get a palindrome (7164664617).

The spelling of 4123421403 in words is "four billion, one hundred twenty-three million, four hundred twenty-one thousand, four hundred three".