103032111312 has 60 divisors (see below), whose sum is σ = 310527341124. Its totient is φ = 31702187520.

The previous prime is 103032111311. The next prime is 103032111341. The reversal of 103032111312 is 213111230301.

103032111312 is a `hidden beast` number, since 1 + 0 + 30 + 321 + 1 + 1 + 312 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 66892580496 + 36139530816 = 258636^2 + 190104^2 .

It is a super-2 number, since 2×103032111312² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103032111311) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 27517389 + ... + 27521132.

Almost surely, 2^103032111312 is an apocalyptic number.

103032111312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103032111312 is an abundant number, since it is smaller than the sum of its proper divisors (207495229812).

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

103032111312 is a wasteful number, since it uses less digits than its factorization.

103032111312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55038548 (or 55038539 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 103032111312 its reverse (213111230301), we get a palindrome (316143341613).

The spelling of 103032111312 in words is "one hundred three billion, thirty-two million, one hundred eleven thousand, three hundred twelve".