240111343561 has 2 divisors, whose sum is σ = 240111343562. Its totient is φ = 240111343560.

The previous prime is 240111343393. The next prime is 240111343573. The reversal of 240111343561 is 165343111042.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 196764103561 + 43347240000 = 443581^2 + 208200^2 .

It is a cyclic number.

It is not a de Polignac number, because 240111343561 - 2¹³ = 240111335369 is a prime.

It is not a weakly prime, because it can be changed into another prime (240111353561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 120055671780 + 120055671781.

It is an arithmetic number, because the mean of its divisors is an integer number (120055671781).

Almost surely, 2^240111343561 is an apocalyptic number.

It is an amenable number.

240111343561 is a deficient number, since it is larger than the sum of its proper divisors (1).

240111343561 is an equidigital number, since it uses as much as digits as its factorization.

240111343561 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8640, while the sum is 31.

The spelling of 240111343561 in words is "two hundred forty billion, one hundred eleven million, three hundred forty-three thousand, five hundred sixty-one".