1242332332457 has 2 divisors, whose sum is σ = 1242332332458. Its totient is φ = 1242332332456.

The previous prime is 1242332332403. The next prime is 1242332332469. The reversal of 1242332332457 is 7542332332421.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 831116662336 + 411215670121 = 911656^2 + 641261^2 .

It is a cyclic number.

It is not a de Polignac number, because 1242332332457 - 2²⁴ = 1242315555241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1242332332487) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 621166166228 + 621166166229.

It is an arithmetic number, because the mean of its divisors is an integer number (621166166229).

Almost surely, 2^{1242332332457} is an apocalyptic number.

It is an amenable number.

1242332332457 is a deficient number, since it is larger than the sum of its proper divisors (1).

1242332332457 is an equidigital number, since it uses as much as digits as its factorization.

1242332332457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 725760, while the sum is 41.

Adding to 1242332332457 its reverse (7542332332421), we get a palindrome (8784664664878).

The spelling of 1242332332457 in words is "one trillion, two hundred forty-two billion, three hundred thirty-two million, three hundred thirty-two thousand, four hundred fifty-seven".