11442121413 has 16 divisors (see below), whose sum is σ = 15290760576. Its totient is φ = 7610803200.

The previous prime is 11442121409. The next prime is 11442121429. The reversal of 11442121413 is 31412124411.

It is a happy number.

It is not a de Polignac number, because 11442121413 - 2² = 11442121409 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11442121463) 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, 4083613 + ... + 4086413.

It is an arithmetic number, because the mean of its divisors is an integer number (955672536).

Almost surely, 2^11442121413 is an apocalyptic number.

It is an amenable number.

11442121413 is a deficient number, since it is larger than the sum of its proper divisors (3848639163).

11442121413 is a wasteful number, since it uses less digits than its factorization.

11442121413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5404.

The product of its digits is 768, while the sum is 24.

Adding to 11442121413 its reverse (31412124411), we get a palindrome (42854245824).

The spelling of 11442121413 in words is "eleven billion, four hundred forty-two million, one hundred twenty-one thousand, four hundred thirteen".