13121441042 has 8 divisors (see below), whose sum is σ = 19685356236. Its totient is φ = 6559655632.

The previous prime is 13121441009. The next prime is 13121441101. The reversal of 13121441042 is 24014412131.

It can be written as a sum of positive squares in 2 ways, for example, as 10805810401 + 2315630641 = 103951^2 + 48121^2 .

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

It is a junction number, because it is equal to n+sod(n) for n = 13121440999 and 13121441017.

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, 516953 + ... + 541740.

Almost surely, 2^13121441042 is an apocalyptic number.

13121441042 is a deficient number, since it is larger than the sum of its proper divisors (6563915194).

13121441042 is a wasteful number, since it uses less digits than its factorization.

13121441042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1064892.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 13121441042 its reverse (24014412131), we get a palindrome (37135853173).

The spelling of 13121441042 in words is "thirteen billion, one hundred twenty-one million, four hundred forty-one thousand, forty-two".