103111331312 has 80 divisors (see below), whose sum is σ = 221173058304. Its totient is φ = 46174464000.

The previous prime is 103111331261. The next prime is 103111331329. The reversal of 103111331312 is 213133111301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25202387 + ... + 25206477.

Almost surely, 2^103111331312 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 103111331312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (110586529152).

103111331312 is an abundant number, since it is smaller than the sum of its proper divisors (118061726992).

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

103111331312 is a wasteful number, since it uses less digits than its factorization.

103111331312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6198 (or 6192 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 103111331312 its reverse (213133111301), we get a palindrome (316244442613).

The spelling of 103111331312 in words is "one hundred three billion, one hundred eleven million, three hundred thirty-one thousand, three hundred twelve".