1240035124481 has 2 divisors, whose sum is σ = 1240035124482. Its totient is φ = 1240035124480.

The previous prime is 1240035124463. The next prime is 1240035124487. The reversal of 1240035124481 is 1844215300421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1225705837456 + 14329287025 = 1107116^2 + 119705^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240035124481 - 2³⁸ = 965157217537 is a prime.

It is a super-2 number, since 2×1240035124481² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1240035124487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620017562240 + 620017562241.

It is an arithmetic number, because the mean of its divisors is an integer number (620017562241).

Almost surely, 2^{1240035124481} is an apocalyptic number.

It is an amenable number.

1240035124481 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240035124481 is an equidigital number, since it uses as much as digits as its factorization.

1240035124481 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30720, while the sum is 35.

The spelling of 1240035124481 in words is "one trillion, two hundred forty billion, thirty-five million, one hundred twenty-four thousand, four hundred eighty-one".