11442013232421 has 16 divisors (see below), whose sum is σ = 16068776068800. Its totient is φ = 7222120115328.

The previous prime is 11442013232411. The next prime is 11442013232473. The reversal of 11442013232421 is 12423231024411.

It is a happy number.

It is not a de Polignac number, because 11442013232421 - 2²⁷ = 11441879014693 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442013232411) 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, 61219176 + ... + 61405793.

It is an arithmetic number, because the mean of its divisors is an integer number (1004298504300).

Almost surely, 2^{11442013232421} is an apocalyptic number.

It is an amenable number.

11442013232421 is a deficient number, since it is larger than the sum of its proper divisors (4626762836379).

11442013232421 is a wasteful number, since it uses less digits than its factorization.

11442013232421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122626628.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 11442013232421 its reverse (12423231024411), we get a palindrome (23865244256832).

The spelling of 11442013232421 in words is "eleven trillion, four hundred forty-two billion, thirteen million, two hundred thirty-two thousand, four hundred twenty-one".