13401243011042 has 16 divisors (see below), whose sum is σ = 20109081419640. Its totient is φ = 6698216162688.

The previous prime is 13401243011029. The next prime is 13401243011069. The reversal of 13401243011042 is 24011034210431.

It can be written as a sum of positive squares in 4 ways, for example, as 12283700145721 + 1117542865321 = 3504811^2 + 1057139^2 .

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, 105228308 + ... + 105355584.

Almost surely, 2^{13401243011042} is an apocalyptic number.

13401243011042 is a deficient number, since it is larger than the sum of its proper divisors (6707838408598).

13401243011042 is a wasteful number, since it uses less digits than its factorization.

13401243011042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145765.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 13401243011042 its reverse (24011034210431), we get a palindrome (37412277221473).

The spelling of 13401243011042 in words is "thirteen trillion, four hundred one billion, two hundred forty-three million, eleven thousand, forty-two".