11203410421 has 12 divisors (see below), whose sum is σ = 13118855520. Its totient is φ = 9539321400.

The previous prime is 11203410403. The next prime is 11203410457. The reversal of 11203410421 is 12401430211.

It is not a de Polignac number, because 11203410421 - 2²⁵ = 11169855989 is a prime.

It is a super-2 number, since 2×11203410421² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203410221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 749691 + ... + 764488.

It is an arithmetic number, because the mean of its divisors is an integer number (1093237960).

Almost surely, 2^11203410421 is an apocalyptic number.

It is an amenable number.

11203410421 is a deficient number, since it is larger than the sum of its proper divisors (1915445099).

11203410421 is a wasteful number, since it uses less digits than its factorization.

11203410421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1514344 (or 1514337 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 11203410421 its reverse (12401430211), we get a palindrome (23604840632).

The spelling of 11203410421 in words is "eleven billion, two hundred three million, four hundred ten thousand, four hundred twenty-one".