21311202241123 has 8 divisors (see below), whose sum is σ = 22446048056000. Its totient is φ = 20177676785448.

The previous prime is 21311202241111. The next prime is 21311202241139. The reversal of 21311202241123 is 32114220211312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21311202241123 - 2³³ = 21302612306531 is a prime.

It is a super-2 number, since 2×21311202241123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21311202241103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 330056661 + ... + 330121222.

It is an arithmetic number, because the mean of its divisors is an integer number (2805756007000).

Almost surely, 2^{21311202241123} is an apocalyptic number.

21311202241123 is a deficient number, since it is larger than the sum of its proper divisors (1134845814877).

21311202241123 is a wasteful number, since it uses less digits than its factorization.

21311202241123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 660179601.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 21311202241123 its reverse (32114220211312), we get a palindrome (53425422452435).

The spelling of 21311202241123 in words is "twenty-one trillion, three hundred eleven billion, two hundred two million, two hundred forty-one thousand, one hundred twenty-three".