40241020430081 has 2 divisors, whose sum is σ = 40241020430082. Its totient is φ = 40241020430080.

The previous prime is 40241020430077. The next prime is 40241020430087. The reversal of 40241020430081 is 18003402014204.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39966356391025 + 274664039056 = 6321895^2 + 524084^2 .

It is a cyclic number.

It is not a de Polignac number, because 40241020430081 - 2² = 40241020430077 is a prime.

It is a super-2 number, since 2×40241020430081² (a number of 28 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (40241020430087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20120510215040 + 20120510215041.

It is an arithmetic number, because the mean of its divisors is an integer number (20120510215041).

Almost surely, 2^{40241020430081} is an apocalyptic number.

It is an amenable number.

40241020430081 is a deficient number, since it is larger than the sum of its proper divisors (1).

40241020430081 is an equidigital number, since it uses as much as digits as its factorization.

40241020430081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6144, while the sum is 29.

Adding to 40241020430081 its reverse (18003402014204), we get a palindrome (58244422444285).

The spelling of 40241020430081 in words is "forty trillion, two hundred forty-one billion, twenty million, four hundred thirty thousand, eighty-one".