1305235342142 has 8 divisors (see below), whose sum is σ = 1959069831600. Its totient is φ = 652212064944.

The previous prime is 1305235342051. The next prime is 1305235342189. The reversal of 1305235342142 is 2412435325031.

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

It is a super-2 number, since 2×1305235342142² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 202799042 + ... + 202805477.

It is an arithmetic number, because the mean of its divisors is an integer number (244883728950).

Almost surely, 2^{1305235342142} is an apocalyptic number.

1305235342142 is a deficient number, since it is larger than the sum of its proper divisors (653834489458).

1305235342142 is a wasteful number, since it uses less digits than its factorization.

1305235342142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405606130.

The product of its (nonzero) digits is 86400, while the sum is 35.

The spelling of 1305235342142 in words is "one trillion, three hundred five billion, two hundred thirty-five million, three hundred forty-two thousand, one hundred forty-two".