13521302142 has 32 divisors (see below), whose sum is σ = 28195430400. Its totient is φ = 4317411168.

The previous prime is 13521302131. The next prime is 13521302159. The reversal of 13521302142 is 24120312531.

It is a super-2 number, since 2×13521302142² (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 15 ways as a sum of consecutive naturals, for example, 283842 + ... + 328037.

It is an arithmetic number, because the mean of its divisors is an integer number (881107200).

Almost surely, 2^13521302142 is an apocalyptic number.

13521302142 is an abundant number, since it is smaller than the sum of its proper divisors (14674128258).

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

13521302142 is a wasteful number, since it uses less digits than its factorization.

13521302142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612040.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 13521302142 its reverse (24120312531), we get a palindrome (37641614673).

The spelling of 13521302142 in words is "thirteen billion, five hundred twenty-one million, three hundred two thousand, one hundred forty-two".