13121121342412 has 12 divisors (see below), whose sum is σ = 22965000100560. Its totient is φ = 6559692742256.

The previous prime is 13121121342391. The next prime is 13121121342463. The reversal of 13121121342412 is 21424312112131.

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, 216948223 + ... + 217008694.

It is an arithmetic number, because the mean of its divisors is an integer number (1913750008380).

Almost surely, 2^{13121121342412} is an apocalyptic number.

It is an amenable number.

13121121342412 is a deficient number, since it is larger than the sum of its proper divisors (9843878758148).

13121121342412 is a wasteful number, since it uses less digits than its factorization.

13121121342412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 433964480 (or 433964478 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

Adding to 13121121342412 its reverse (21424312112131), we get a palindrome (34545433454543).

The spelling of 13121121342412 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred forty-two thousand, four hundred twelve".