13120140400420 has 24 divisors (see below), whose sum is σ = 27595144471104. Its totient is φ = 5239894325856.

The previous prime is 13120140400397. The next prime is 13120140400439. The reversal of 13120140400420 is 2400404102131.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 13120140400391 and 13120140400400.

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, 510101464 + ... + 510127183.

It is an arithmetic number, because the mean of its divisors is an integer number (1149797686296).

Almost surely, 2^{13120140400420} is an apocalyptic number.

13120140400420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13120140400420 is an abundant number, since it is smaller than the sum of its proper divisors (14475004070684).

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

13120140400420 is a wasteful number, since it uses less digits than its factorization.

13120140400420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1020229299 (or 1020229297 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 13120140400420 its reverse (2400404102131), we get a palindrome (15520544502551).

The spelling of 13120140400420 in words is "thirteen trillion, one hundred twenty billion, one hundred forty million, four hundred thousand, four hundred twenty".