1240072711 has 2 divisors, whose sum is σ = 1240072712. Its totient is φ = 1240072710.

The previous prime is 1240072709. The next prime is 1240072751. The reversal of 1240072711 is 1172700421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240072711 - 2¹ = 1240072709 is a prime.

Together with 1240072709, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240072751) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620036355 + 620036356.

It is an arithmetic number, because the mean of its divisors is an integer number (620036356).

Almost surely, 2^1240072711 is an apocalyptic number.

1240072711 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240072711 is an equidigital number, since it uses as much as digits as its factorization.

1240072711 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 784, while the sum is 25.

The square root of 1240072711 is about 35214.6661350069. Note that the first 3 decimals coincide. The cubic root of 1240072711 is about 1074.3580695363.

The spelling of 1240072711 in words is "one billion, two hundred forty million, seventy-two thousand, seven hundred eleven".