11421240442101 has 80 divisors (see below), whose sum is σ = 19600344720000. Its totient is φ = 6492484357632.

The previous prime is 11421240442097. The next prime is 11421240442103. The reversal of 11421240442101 is 10124404212411.

11421240442101 is a `hidden beast` number, since 1 + 1 + 4 + 212 + 4 + 0 + 442 + 1 + 0 + 1 = 666.

It is not a de Polignac number, because 11421240442101 - 2² = 11421240442097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11421240442103) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 88493545 + ... + 88622513.

It is an arithmetic number, because the mean of its divisors is an integer number (245004309000).

Almost surely, 2^{11421240442101} is an apocalyptic number.

It is an amenable number.

11421240442101 is a deficient number, since it is larger than the sum of its proper divisors (8179104277899).

11421240442101 is a wasteful number, since it uses less digits than its factorization.

11421240442101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129800 (or 129791 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 27.

Adding to 11421240442101 its reverse (10124404212411), we get a palindrome (21545644654512).

The spelling of 11421240442101 in words is "eleven trillion, four hundred twenty-one billion, two hundred forty million, four hundred forty-two thousand, one hundred one".