203431424532 has 96 divisors (see below), whose sum is σ = 561785414400. Its totient is φ = 56059487232.

The previous prime is 203431424453. The next prime is 203431424543. The reversal of 203431424532 is 235424134302.

It is a super-2 number, since 2×203431424532² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203431424493 and 203431424502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2277694 + ... + 2365322.

It is an arithmetic number, because the mean of its divisors is an integer number (5851931400).

Almost surely, 2^203431424532 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203431424532, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (280892707200).

203431424532 is an abundant number, since it is smaller than the sum of its proper divisors (358353989868).

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

203431424532 is a wasteful number, since it uses less digits than its factorization.

203431424532 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88625 (or 88623 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 33.

Adding to 203431424532 its reverse (235424134302), we get a palindrome (438855558834).

The spelling of 203431424532 in words is "two hundred three billion, four hundred thirty-one million, four hundred twenty-four thousand, five hundred thirty-two".