11421004040 has 32 divisors (see below), whose sum is σ = 25717311000. Its totient is φ = 4564836864.

The previous prime is 11421004037. The next prime is 11421004043. The reversal of 11421004040 is 4040012411.

It is an interprime number because it is at equal distance from previous prime (11421004037) and next prime (11421004043).

It can be written as a sum of positive squares in 4 ways, for example, as 9736558276 + 1684445764 = 98674^2 + 41042^2 .

It is not an unprimeable number, because it can be changed into a prime (11421004043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59195 + ... + 162314.

Almost surely, 2^11421004040 is an apocalyptic number.

11421004040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11421004040 is an abundant number, since it is smaller than the sum of its proper divisors (14296306960).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11421004040 is a wasteful number, since it uses less digits than its factorization.

11421004040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222809 (or 222805 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 11421004040 its reverse (4040012411), we get a palindrome (15461016451).

The spelling of 11421004040 in words is "eleven billion, four hundred twenty-one million, four thousand, forty".