11442121412 has 24 divisors (see below), whose sum is σ = 20535637752. Its totient is φ = 5575116800.

The previous prime is 11442121409. The next prime is 11442121429. The reversal of 11442121412 is 21412124411.

It can be written as a sum of positive squares in 4 ways, for example, as 310605376 + 11131516036 = 17624^2 + 105506^2 .

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 104888 + ... + 184080.

It is an arithmetic number, because the mean of its divisors is an integer number (855651573).

Almost surely, 2^11442121412 is an apocalyptic number.

It is an amenable number.

11442121412 is a deficient number, since it is larger than the sum of its proper divisors (9093516340).

11442121412 is a wasteful number, since it uses less digits than its factorization.

11442121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80119 (or 80117 counting only the distinct ones).

The product of its digits is 512, while the sum is 23.

Adding to 11442121412 its reverse (21412124411), we get a palindrome (32854245823).

The spelling of 11442121412 in words is "eleven billion, four hundred forty-two million, one hundred twenty-one thousand, four hundred twelve".