103312212 has 48 divisors (see below), whose sum is σ = 250478592. Its totient is φ = 33107040.

The previous prime is 103312151. The next prime is 103312217. The reversal of 103312212 is 212213301.

It is a junction number, because it is equal to n+sod(n) for n = 103312191 and 103312200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103312217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 61293 + ... + 62955.

It is an arithmetic number, because the mean of its divisors is an integer number (5218304).

Almost surely, 2^103312212 is an apocalyptic number.

103312212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103312212 is an abundant number, since it is smaller than the sum of its proper divisors (147166380).

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

103312212 is a wasteful number, since it uses less digits than its factorization.

103312212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1868 (or 1866 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 103312212 is about 10164.2615078519. The cubic root of 103312212 is about 469.2279644565.

Adding to 103312212 its reverse (212213301), we get a palindrome (315525513).

The spelling of 103312212 in words is "one hundred three million, three hundred twelve thousand, two hundred twelve".