13121144211654 has 48 divisors (see below), whose sum is σ = 28639893634560. Its totient is φ = 4341409684080.

The previous prime is 13121144211619. The next prime is 13121144211709. The reversal of 13121144211654 is 45611244112131.

13121144211654 is a `hidden beast` number, since 1 + 3 + 1 + 211 + 4 + 421 + 16 + 5 + 4 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3565632 + ... + 6241475.

It is an arithmetic number, because the mean of its divisors is an integer number (596664450720).

Almost surely, 2^{13121144211654} is an apocalyptic number.

13121144211654 is an abundant number, since it is smaller than the sum of its proper divisors (15518749422906).

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

13121144211654 is a wasteful number, since it uses less digits than its factorization.

13121144211654 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9807665 (or 9807662 counting only the distinct ones).

The product of its digits is 23040, while the sum is 36.

Adding to 13121144211654 its reverse (45611244112131), we get a palindrome (58732388323785).

The spelling of 13121144211654 in words is "thirteen trillion, one hundred twenty-one billion, one hundred forty-four million, two hundred eleven thousand, six hundred fifty-four".