13542231420 has 36 divisors (see below), whose sum is σ = 41078102520. Its totient is φ = 3611261664.

The previous prime is 13542231403. The next prime is 13542231449. The reversal of 13542231420 is 2413224531.

13542231420 is a `hidden beast` number, since 1 + 3 + 5 + 4 + 2 + 231 + 420 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37617130 + ... + 37617489.

Almost surely, 2^13542231420 is an apocalyptic number.

13542231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13542231420 is an abundant number, since it is smaller than the sum of its proper divisors (27535871100).

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

13542231420 is a wasteful number, since it uses less digits than its factorization.

13542231420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75234634 (or 75234629 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 13542231420 its reverse (2413224531), we get a palindrome (15955455951).

The spelling of 13542231420 in words is "thirteen billion, five hundred forty-two million, two hundred thirty-one thousand, four hundred twenty".