11403214021 has 8 divisors (see below), whose sum is σ = 12056266080. Its totient is φ = 10755450288.

The previous prime is 11403214019. The next prime is 11403214027. The reversal of 11403214021 is 12041230411.

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 11403214021 - 2¹ = 11403214019 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 11403214021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403214027) 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, 1317646 + ... + 1326271.

It is an arithmetic number, because the mean of its divisors is an integer number (1507033260).

Almost surely, 2^11403214021 is an apocalyptic number.

It is an amenable number.

11403214021 is a deficient number, since it is larger than the sum of its proper divisors (653052059).

11403214021 is a wasteful number, since it uses less digits than its factorization.

11403214021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2644163.

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

Adding to 11403214021 its reverse (12041230411), we get a palindrome (23444444432).

The spelling of 11403214021 in words is "eleven billion, four hundred three million, two hundred fourteen thousand, twenty-one".