13105435405402 has 16 divisors (see below), whose sum is σ = 19693812945960. Its totient is φ = 6540832390912.

The previous prime is 13105435405399. The next prime is 13105435405427. The reversal of 13105435405402 is 20450453450131.

It can be written as a sum of positive squares in 4 ways, for example, as 10882470701881 + 2222964703521 = 3298859^2 + 1490961^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20433348 + ... + 21064960.

Almost surely, 2^{13105435405402} is an apocalyptic number.

13105435405402 is a deficient number, since it is larger than the sum of its proper divisors (6588377540558).

13105435405402 is a wasteful number, since it uses less digits than its factorization.

13105435405402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 650417.

The product of its (nonzero) digits is 144000, while the sum is 37.

Adding to 13105435405402 its reverse (20450453450131), we get a palindrome (33555888855533).

The spelling of 13105435405402 in words is "thirteen trillion, one hundred five billion, four hundred thirty-five million, four hundred five thousand, four hundred two".