103111032212 has 12 divisors (see below), whose sum is σ = 191058677460. Its totient is φ = 48522838656.

The previous prime is 103111032173. The next prime is 103111032217. The reversal of 103111032212 is 212230111301.

It can be written as a sum of positive squares in 2 ways, for example, as 89326863376 + 13784168836 = 298876^2 + 117406^2 .

It is a super-2 number, since 2×103111032212² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103111032217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 758169287 + ... + 758169422.

It is an arithmetic number, because the mean of its divisors is an integer number (15921556455).

Almost surely, 2^103111032212 is an apocalyptic number.

It is an amenable number.

103111032212 is a deficient number, since it is larger than the sum of its proper divisors (87947645248).

103111032212 is a wasteful number, since it uses less digits than its factorization.

103111032212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516338730 (or 1516338728 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 103111032212 its reverse (212230111301), we get a palindrome (315341143513).

The spelling of 103111032212 in words is "one hundred three billion, one hundred eleven million, thirty-two thousand, two hundred twelve".