1305630021342 has 8 divisors (see below), whose sum is σ = 2611260042696. Its totient is φ = 435210007112.

The previous prime is 1305630021331. The next prime is 1305630021343. The reversal of 1305630021342 is 2431200365031.

It is a sphenic number, since it is the product of 3 distinct primes.

1305630021342 is an admirable number.

It is a super-2 number, since 2×1305630021342² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1305630021343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 108802501773 + ... + 108802501784.

It is an arithmetic number, because the mean of its divisors is an integer number (326407505337).

Almost surely, 2^{1305630021342} is an apocalyptic number.

1305630021342 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1305630021342 is a wasteful number, since it uses less digits than its factorization.

1305630021342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 217605003562.

The product of its (nonzero) digits is 12960, while the sum is 30.

Adding to 1305630021342 its reverse (2431200365031), we get a palindrome (3736830386373).

The spelling of 1305630021342 in words is "one trillion, three hundred five billion, six hundred thirty million, twenty-one thousand, three hundred forty-two".