31103202003132 has 96 divisors (see below), whose sum is σ = 83554691996160. Its totient is φ = 8820994533120.

The previous prime is 31103202003103. The next prime is 31103202003163. The reversal of 31103202003132 is 23130020230113.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 31103202003099 and 31103202003108.

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, 60892882 + ... + 61401542.

It is an arithmetic number, because the mean of its divisors is an integer number (870361374960).

Almost surely, 2^{31103202003132} 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 31103202003132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41777345998080).

31103202003132 is an abundant number, since it is smaller than the sum of its proper divisors (52451489993028).

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

31103202003132 is a wasteful number, since it uses less digits than its factorization.

31103202003132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 514051 (or 514049 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31103202003132 its reverse (23130020230113), we get a palindrome (54233222233245).

The spelling of 31103202003132 in words is "thirty-one trillion, one hundred three billion, two hundred two million, three thousand, one hundred thirty-two".