1305434031402 has 16 divisors (see below), whose sum is σ = 2611043502912. Its totient is φ = 435115437120.

The previous prime is 1305434031361. The next prime is 1305434031467. The reversal of 1305434031402 is 2041304345031.

It is a self number, because there is not a number n which added to its sum of digits gives 1305434031402.

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 7 ways as a sum of consecutive naturals, for example, 7213174 + ... + 7391937.

It is an arithmetic number, because the mean of its divisors is an integer number (163190218932).

Almost surely, 2^{1305434031402} is an apocalyptic number.

1305434031402 is an abundant number, since it is smaller than the sum of its proper divisors (1305609471510).

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

1305434031402 is a wasteful number, since it uses less digits than its factorization.

1305434031402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14620013.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 1305434031402 its reverse (2041304345031), we get a palindrome (3346738376433).

The spelling of 1305434031402 in words is "one trillion, three hundred five billion, four hundred thirty-four million, thirty-one thousand, four hundred two".