1240332245077 has 2 divisors, whose sum is σ = 1240332245078. Its totient is φ = 1240332245076.

The previous prime is 1240332245041. The next prime is 1240332245153. The reversal of 1240332245077 is 7705422330421.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 680766907396 + 559565337681 = 825086^2 + 748041^2 .

It is a cyclic number.

It is not a de Polignac number, because 1240332245077 - 2²³ = 1240323856469 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240332215077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620166122538 + 620166122539.

It is an arithmetic number, because the mean of its divisors is an integer number (620166122539).

Almost surely, 2^{1240332245077} is an apocalyptic number.

It is an amenable number.

1240332245077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240332245077 is an equidigital number, since it uses as much as digits as its factorization.

1240332245077 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 282240, while the sum is 40.

Adding to 1240332245077 its reverse (7705422330421), we get a palindrome (8945754575498).

The spelling of 1240332245077 in words is "one trillion, two hundred forty billion, three hundred thirty-two million, two hundred forty-five thousand, seventy-seven".