11231421003 has 48 divisors (see below), whose sum is σ = 18197726976. Its totient is φ = 6615155520.

The previous prime is 11231420989. The next prime is 11231421007. The reversal of 11231421003 is 30012413211.

11231421003 is a `hidden beast` number, since 11 + 231 + 421 + 0 + 0 + 3 = 666.

It is not a de Polignac number, because 11231421003 - 2⁴ = 11231420987 is a prime.

It is a super-2 number, since 2×11231421003² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11231421007) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5006200 + ... + 5008442.

It is an arithmetic number, because the mean of its divisors is an integer number (379119312).

Almost surely, 2^11231421003 is an apocalyptic number.

11231421003 is a deficient number, since it is larger than the sum of its proper divisors (6966305973).

11231421003 is a wasteful number, since it uses less digits than its factorization.

11231421003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3664 (or 3661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 11231421003 its reverse (30012413211), we get a palindrome (41243834214).

It can be divided in two parts, 11231 and 421003, that added together give a palindrome (432234).

The spelling of 11231421003 in words is "eleven billion, two hundred thirty-one million, four hundred twenty-one thousand, three".