103123120212 has 36 divisors (see below), whose sum is σ = 297911236896. Its totient is φ = 29463748560.

The previous prime is 103123120207. The next prime is 103123120241. The reversal of 103123120212 is 212021321301.

It is a tau number, because it is divible by the number of its divisors (36).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 204609114 + ... + 204609617.

It is an arithmetic number, because the mean of its divisors is an integer number (8275312136).

Almost surely, 2^103123120212 is an apocalyptic number.

103123120212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

103123120212 is an abundant number, since it is smaller than the sum of its proper divisors (194788116684).

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

103123120212 is a wasteful number, since it uses less digits than its factorization.

103123120212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 409218748 (or 409218743 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 103123120212 its reverse (212021321301), we get a palindrome (315144441513).

The spelling of 103123120212 in words is "one hundred three billion, one hundred twenty-three million, one hundred twenty thousand, two hundred twelve".