20131535324 has 12 divisors (see below), whose sum is σ = 35233010400. Its totient is φ = 10064960928.

The previous prime is 20131535323. The next prime is 20131535339. The reversal of 20131535324 is 42353513102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131535323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 143684 + ... + 246795.

It is an arithmetic number, because the mean of its divisors is an integer number (2936084200).

Almost surely, 2^20131535324 is an apocalyptic number.

It is an amenable number.

20131535324 is a deficient number, since it is larger than the sum of its proper divisors (15101475076).

20131535324 is a wasteful number, since it uses less digits than its factorization.

20131535324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403372 (or 403370 counting only the distinct ones).

The product of its (nonzero) digits is 10800, while the sum is 29.

The spelling of 20131535324 in words is "twenty billion, one hundred thirty-one million, five hundred thirty-five thousand, three hundred twenty-four".