103120100212 has 6 divisors (see below), whose sum is σ = 180460175378. Its totient is φ = 51560050104.

The previous prime is 103120100207. The next prime is 103120100219. The reversal of 103120100212 is 212001021301.

It can be written as a sum of positive squares in only one way, i.e., 69218452836 + 33901647376 = 263094^2 + 184124^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103120100192 and 103120100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103120100219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12890012523 + ... + 12890012530.

Almost surely, 2^103120100212 is an apocalyptic number.

It is an amenable number.

103120100212 is a deficient number, since it is larger than the sum of its proper divisors (77340075166).

103120100212 is a wasteful number, since it uses less digits than its factorization.

103120100212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25780025057 (or 25780025055 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 103120100212 its reverse (212001021301), we get a palindrome (315121121513).

The spelling of 103120100212 in words is "one hundred three billion, one hundred twenty million, one hundred thousand, two hundred twelve".