21400133041 has 12 divisors (see below), whose sum is σ = 25976382912. Its totient is φ = 17545449768.

The previous prime is 21400133039. The next prime is 21400133047. The reversal of 21400133041 is 14033100412.

It is not a de Polignac number, because 21400133041 - 2¹ = 21400133039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21400133047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9493165 + ... + 9495418.

It is an arithmetic number, because the mean of its divisors is an integer number (2164698576).

Almost surely, 2^21400133041 is an apocalyptic number.

It is an amenable number.

21400133041 is a deficient number, since it is larger than the sum of its proper divisors (4576249871).

21400133041 is a wasteful number, since it uses less digits than its factorization.

21400133041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18988620 (or 18988613 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21400133041 its reverse (14033100412), we get a palindrome (35433233453).

The spelling of 21400133041 in words is "twenty-one billion, four hundred million, one hundred thirty-three thousand, forty-one".