103211223123 has 16 divisors (see below), whose sum is σ = 145729562400. Its totient is φ = 64751271936.

The previous prime is 103211223113. The next prime is 103211223169. The reversal of 103211223123 is 321322112301.

It is not a de Polignac number, because 103211223123 - 2⁴ = 103211223107 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 103211223123.

It is not an unprimeable number, because it can be changed into a prime (103211223113) 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 15 ways as a sum of consecutive naturals, for example, 257811 + ... + 522387.

It is an arithmetic number, because the mean of its divisors is an integer number (9108097650).

Almost surely, 2^103211223123 is an apocalyptic number.

103211223123 is a deficient number, since it is larger than the sum of its proper divisors (42518339277).

103211223123 is a wasteful number, since it uses less digits than its factorization.

103211223123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 272246.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 103211223123 its reverse (321322112301), we get a palindrome (424533335424).

The spelling of 103211223123 in words is "one hundred three billion, two hundred eleven million, two hundred twenty-three thousand, one hundred twenty-three".