11403230421 has 32 divisors (see below), whose sum is σ = 17320025088. Its totient is φ = 6605850240.

The previous prime is 11403230347. The next prime is 11403230453. The reversal of 11403230421 is 12403230411.

It is not a de Polignac number, because 11403230421 - 2⁹ = 11403229909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403230521) 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, 1253130 + ... + 1262196.

It is an arithmetic number, because the mean of its divisors is an integer number (541250784).

Almost surely, 2^11403230421 is an apocalyptic number.

11403230421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11403230421 is a deficient number, since it is larger than the sum of its proper divisors (5916794667).

11403230421 is a wasteful number, since it uses less digits than its factorization.

11403230421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10761.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11403230421 its reverse (12403230411), we get a palindrome (23806460832).

It can be divided in two parts, 114032 and 30421, that added together give a triangular number (144453 = T₅₃₇).

The spelling of 11403230421 in words is "eleven billion, four hundred three million, two hundred thirty thousand, four hundred twenty-one".