240441000130921 has 2 divisors, whose sum is σ = 240441000130922. Its totient is φ = 240441000130920.

The previous prime is 240441000130909. The next prime is 240441000130931. The reversal of 240441000130921 is 129031000144042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 194087778908521 + 46353221222400 = 13931539^2 + 6808320^2 .

It is a cyclic number.

It is not a de Polignac number, because 240441000130921 - 2⁵ = 240441000130889 is a prime.

It is not a weakly prime, because it can be changed into another prime (240441000130931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120220500065460 + 120220500065461.

It is an arithmetic number, because the mean of its divisors is an integer number (120220500065461).

Almost surely, 2^{240441000130921} is an apocalyptic number.

It is an amenable number.

240441000130921 is a deficient number, since it is larger than the sum of its proper divisors (1).

240441000130921 is an equidigital number, since it uses as much as digits as its factorization.

240441000130921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 240441000130921 its reverse (129031000144042), we get a palindrome (369472000274963).

The spelling of 240441000130921 in words is "two hundred forty trillion, four hundred forty-one billion, one hundred thirty thousand, nine hundred twenty-one".