1342123433257 has 2 divisors, whose sum is σ = 1342123433258. Its totient is φ = 1342123433256.

The previous prime is 1342123433201. The next prime is 1342123433309. The reversal of 1342123433257 is 7523343212431.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1094249892096 + 247873541161 = 1046064^2 + 497869^2 .

It is a cyclic number.

It is not a de Polignac number, because 1342123433257 - 2⁷ = 1342123433129 is a prime.

It is not a weakly prime, because it can be changed into another prime (1342123433557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671061716628 + 671061716629.

It is an arithmetic number, because the mean of its divisors is an integer number (671061716629).

Almost surely, 2^{1342123433257} is an apocalyptic number.

It is an amenable number.

1342123433257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342123433257 is an equidigital number, since it uses as much as digits as its factorization.

1342123433257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 362880, while the sum is 40.

Adding to 1342123433257 its reverse (7523343212431), we get a palindrome (8865466645688).

The spelling of 1342123433257 in words is "one trillion, three hundred forty-two billion, one hundred twenty-three million, four hundred thirty-three thousand, two hundred fifty-seven".