20131103434232 has 16 divisors (see below), whose sum is σ = 43138078787760. Its totient is φ = 8627615757504.

The previous prime is 20131103434231. The next prime is 20131103434259. The reversal of 20131103434232 is 23243430113102.

It is a super-2 number, since 2×20131103434232² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20131103434195 and 20131103434204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20131103434231) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 179741994893 + ... + 179741995004.

It is an arithmetic number, because the mean of its divisors is an integer number (2696129924235).

Almost surely, 2^{20131103434232} is an apocalyptic number.

It is an amenable number.

20131103434232 is an abundant number, since it is smaller than the sum of its proper divisors (23006975353528).

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

20131103434232 is a wasteful number, since it uses less digits than its factorization.

20131103434232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359483989910 (or 359483989906 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 29.

Adding to 20131103434232 its reverse (23243430113102), we get a palindrome (43374533547334).

The spelling of 20131103434232 in words is "twenty trillion, one hundred thirty-one billion, one hundred three million, four hundred thirty-four thousand, two hundred thirty-two".