103311012 has 36 divisors (see below), whose sum is σ = 280417200. Its totient is φ = 29517264.

The previous prime is 103311001. The next prime is 103311017. The reversal of 103311012 is 210113301.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (103311017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87262 + ... + 88437.

Almost surely, 2^103311012 is an apocalyptic number.

103311012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103311012 is an abundant number, since it is smaller than the sum of its proper divisors (177106188).

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

103311012 is a wasteful number, since it uses less digits than its factorization.

103311012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175720 (or 175711 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 103311012 is about 10164.2024773221. The cubic root of 103311012 is about 469.2261477118.

Adding to 103311012 its reverse (210113301), we get a palindrome (313424313).

The spelling of 103311012 in words is "one hundred three million, three hundred eleven thousand, twelve".