1201342423357 has 2 divisors, whose sum is σ = 1201342423358. Its totient is φ = 1201342423356.

The previous prime is 1201342423289. The next prime is 1201342423363. The reversal of 1201342423357 is 7533242431021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1077400404441 + 123942018916 = 1037979^2 + 352054^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1201342423357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201342423367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600671211678 + 600671211679.

It is an arithmetic number, because the mean of its divisors is an integer number (600671211679).

Almost surely, 2^{1201342423357} is an apocalyptic number.

It is an amenable number.

1201342423357 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201342423357 is an equidigital number, since it uses as much as digits as its factorization.

1201342423357 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120960, while the sum is 37.

Adding to 1201342423357 its reverse (7533242431021), we get a palindrome (8734584854378).

The spelling of 1201342423357 in words is "one trillion, two hundred one billion, three hundred forty-two million, four hundred twenty-three thousand, three hundred fifty-seven".