1342646302391 has 2 divisors, whose sum is σ = 1342646302392. Its totient is φ = 1342646302390.

The previous prime is 1342646302367. The next prime is 1342646302453. The reversal of 1342646302391 is 1932036462431.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1342646302391 is a prime.

It is a super-2 number, since 2×1342646302391² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1342646302331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671323151195 + 671323151196.

It is an arithmetic number, because the mean of its divisors is an integer number (671323151196).

Almost surely, 2^{1342646302391} is an apocalyptic number.

1342646302391 is a deficient number, since it is larger than the sum of its proper divisors (1).

1342646302391 is an equidigital number, since it uses as much as digits as its factorization.

1342646302391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 44.

The spelling of 1342646302391 in words is "one trillion, three hundred forty-two billion, six hundred forty-six million, three hundred two thousand, three hundred ninety-one".