13121106463240 has 32 divisors (see below), whose sum is σ = 29747852069760. Its totient is φ = 5208378136000.

The previous prime is 13121106463219. The next prime is 13121106463417. The reversal of 13121106463240 is 4236460112131.

It is a junction number, because it is equal to n+sod(n) for n = 13121106463196 and 13121106463205.

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, 1252008736 + ... + 1252019215.

It is an arithmetic number, because the mean of its divisors is an integer number (929620377180).

Almost surely, 2^{13121106463240} is an apocalyptic number.

13121106463240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121106463240 is an abundant number, since it is smaller than the sum of its proper divisors (16626745606520).

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

13121106463240 is a wasteful number, since it uses less digits than its factorization.

13121106463240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2504028093 (or 2504028089 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 34.

Adding to 13121106463240 its reverse (4236460112131), we get a palindrome (17357566575371).

The spelling of 13121106463240 in words is "thirteen trillion, one hundred twenty-one billion, one hundred six million, four hundred sixty-three thousand, two hundred forty".