13124334122420 has 48 divisors (see below), whose sum is σ = 29290827681360. Its totient is φ = 4922557999104.

The previous prime is 13124334122351. The next prime is 13124334122467. The reversal of 13124334122420 is 2422143342131.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 181881778576 + 12942452343844 = 426476^2 + 3597562^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71657579 + ... + 71840498.

It is an arithmetic number, because the mean of its divisors is an integer number (610225576695).

Almost surely, 2^{13124334122420} is an apocalyptic number.

13124334122420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13124334122420 is an abundant number, since it is smaller than the sum of its proper divisors (16166493558940).

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

13124334122420 is a wasteful number, since it uses less digits than its factorization.

13124334122420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143498372 (or 143498370 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 13124334122420 its reverse (2422143342131), we get a palindrome (15546477464551).

The spelling of 13124334122420 in words is "thirteen trillion, one hundred twenty-four billion, three hundred thirty-four million, one hundred twenty-two thousand, four hundred twenty".