1031203231100 has 108 divisors (see below), whose sum is σ = 2607731828856. Its totient is φ = 352919710080.

The previous prime is 1031203231033. The next prime is 1031203231181. The reversal of 1031203231100 is 11323021301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 2540387 + ... + 2918213.

It is an arithmetic number, because the mean of its divisors is an integer number (24145665082).

Almost surely, 2^{1031203231100} is an apocalyptic number.

1031203231100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1031203231100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1303865914428).

1031203231100 is an abundant number, since it is smaller than the sum of its proper divisors (1576528597756).

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

1031203231100 is a wasteful number, since it uses less digits than its factorization.

1031203231100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 378412 (or 378398 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1031203231100 its reverse (11323021301), we get a palindrome (1042526252401).

The spelling of 1031203231100 in words is "one trillion, thirty-one billion, two hundred three million, two hundred thirty-one thousand, one hundred".