21140032121241 has 64 divisors (see below), whose sum is σ = 33284049361920. Its totient is φ = 11794940271360.

The previous prime is 21140032121237. The next prime is 21140032121251. The reversal of 21140032121241 is 14212123004112.

It is not a de Polignac number, because 21140032121241 - 2² = 21140032121237 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21140032121251) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17917930 + ... + 19061276.

It is an arithmetic number, because the mean of its divisors is an integer number (520063271280).

Almost surely, 2^{21140032121241} is an apocalyptic number.

It is an amenable number.

21140032121241 is a deficient number, since it is larger than the sum of its proper divisors (12144017240679).

21140032121241 is a wasteful number, since it uses less digits than its factorization.

21140032121241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1144214.

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

Adding to 21140032121241 its reverse (14212123004112), we get a palindrome (35352155125353).

The spelling of 21140032121241 in words is "twenty-one trillion, one hundred forty billion, thirty-two million, one hundred twenty-one thousand, two hundred forty-one".