1240545341351 has 2 divisors, whose sum is σ = 1240545341352. Its totient is φ = 1240545341350.

The previous prime is 1240545341323. The next prime is 1240545341447. The reversal of 1240545341351 is 1531435450421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240545341351 - 2¹⁰ = 1240545340327 is a prime.

It is a super-2 number, since 2×1240545341351² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240545341951) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620272670675 + 620272670676.

It is an arithmetic number, because the mean of its divisors is an integer number (620272670676).

Almost surely, 2^{1240545341351} is an apocalyptic number.

1240545341351 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240545341351 is an equidigital number, since it uses as much as digits as its factorization.

1240545341351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144000, while the sum is 38.

The spelling of 1240545341351 in words is "one trillion, two hundred forty billion, five hundred forty-five million, three hundred forty-one thousand, three hundred fifty-one".