1305431440106 has 8 divisors (see below), whose sum is σ = 1958163150720. Its totient is φ = 652710389868.

The previous prime is 1305431440099. The next prime is 1305431440129. The reversal of 1305431440106 is 6010441345031.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2351576 + ... + 2853203.

It is an arithmetic number, because the mean of its divisors is an integer number (244770393840).

Almost surely, 2^{1305431440106} is an apocalyptic number.

1305431440106 is a deficient number, since it is larger than the sum of its proper divisors (652731710614).

1305431440106 is a wasteful number, since it uses less digits than its factorization.

1305431440106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5330188.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 1305431440106 its reverse (6010441345031), we get a palindrome (7315872785137).

The spelling of 1305431440106 in words is "one trillion, three hundred five billion, four hundred thirty-one million, four hundred forty thousand, one hundred six".