13541512120 has 32 divisors (see below), whose sum is σ = 30567675600. Its totient is φ = 5398956288.

The previous prime is 13541512111. The next prime is 13541512139. The reversal of 13541512120 is 2121514531.

It is a super-2 number, since 2×13541512120² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

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, 539085 + ... + 563644.

Almost surely, 2^13541512120 is an apocalyptic number.

13541512120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13541512120 is an abundant number, since it is smaller than the sum of its proper divisors (17026163480).

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

13541512120 is a wasteful number, since it uses less digits than its factorization.

13541512120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1103047 (or 1103043 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 25.

The spelling of 13541512120 in words is "thirteen billion, five hundred forty-one million, five hundred twelve thousand, one hundred twenty".