13151124131421 has 16 divisors (see below), whose sum is σ = 18287074738688. Its totient is φ = 8397126144000.

The previous prime is 13151124131389. The next prime is 13151124131429. The reversal of 13151124131421 is 12413142115131.

It is not a de Polignac number, because 13151124131421 - 2⁵ = 13151124131389 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13151124131429) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728908180 + ... + 728926221.

It is an arithmetic number, because the mean of its divisors is an integer number (1142942171168).

Almost surely, 2^{13151124131421} is an apocalyptic number.

It is an amenable number.

13151124131421 is a deficient number, since it is larger than the sum of its proper divisors (5135950607267).

13151124131421 is a wasteful number, since it uses less digits than its factorization.

13151124131421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457834532.

The product of its digits is 2880, while the sum is 30.

Adding to 13151124131421 its reverse (12413142115131), we get a palindrome (25564266246552).

The spelling of 13151124131421 in words is "thirteen trillion, one hundred fifty-one billion, one hundred twenty-four million, one hundred thirty-one thousand, four hundred twenty-one".