11402042321 has 16 divisors (see below), whose sum is σ = 11569884480. Its totient is φ = 11235781440.

The previous prime is 11402042279. The next prime is 11402042357. The reversal of 11402042321 is 12324020411.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11402042321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11402042293 and 11402042302.

It is not an unprimeable number, because it can be changed into a prime (11402042371) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20470175 + ... + 20470731.

It is an arithmetic number, because the mean of its divisors is an integer number (723117780).

Almost surely, 2^11402042321 is an apocalyptic number.

It is an amenable number.

11402042321 is a deficient number, since it is larger than the sum of its proper divisors (167842159).

11402042321 is a wasteful number, since it uses less digits than its factorization.

11402042321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1504.

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

Adding to 11402042321 its reverse (12324020411), we get a palindrome (23726062732).

The spelling of 11402042321 in words is "eleven billion, four hundred two million, forty-two thousand, three hundred twenty-one".