11404403021 has 8 divisors (see below), whose sum is σ = 12469512000. Its totient is φ = 10344018240.

The previous prime is 11404402991. The next prime is 11404403051. The reversal of 11404403021 is 12030440411.

It is an interprime number because it is at equal distance from previous prime (11404402991) and next prime (11404403051).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11404403021 - 2⁶ = 11404402957 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11404402984 and 11404403002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11404403051) 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, 1175996 + ... + 1185653.

It is an arithmetic number, because the mean of its divisors is an integer number (1558689000).

Almost surely, 2^11404403021 is an apocalyptic number.

11404403021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11404403021 is a deficient number, since it is larger than the sum of its proper divisors (1065108979).

11404403021 is a wasteful number, since it uses less digits than its factorization.

11404403021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2362099.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 11404403021 its reverse (12030440411), we get a palindrome (23434843432).

The spelling of 11404403021 in words is "eleven billion, four hundred four million, four hundred three thousand, twenty-one".