11442421402 has 4 divisors (see below), whose sum is σ = 17163632106. Its totient is φ = 5721210700.

The previous prime is 11442421399. The next prime is 11442421423. The reversal of 11442421402 is 20412424411.

It is a happy number.

11442421402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 11384676601 + 57744801 = 106699^2 + 7599^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2860605349 + ... + 2860605352.

Almost surely, 2^11442421402 is an apocalyptic number.

11442421402 is a deficient number, since it is larger than the sum of its proper divisors (5721210704).

11442421402 is an equidigital number, since it uses as much as digits as its factorization.

11442421402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5721210703.

The product of its (nonzero) digits is 2048, while the sum is 25.

Adding to 11442421402 its reverse (20412424411), we get a palindrome (31854845813).

The spelling of 11442421402 in words is "eleven billion, four hundred forty-two million, four hundred twenty-one thousand, four hundred two".