103211220123 has 12 divisors (see below), whose sum is σ = 162635862168. Its totient is φ = 62552254560.

The previous prime is 103211220121. The next prime is 103211220149. The reversal of 103211220123 is 321022112301.

103211220123 is a `hidden beast` number, since 1 + 0 + 321 + 1 + 220 + 123 = 666.

It is not a de Polignac number, because 103211220123 - 2¹ = 103211220121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103211220096 and 103211220105.

It is not an unprimeable number, because it can be changed into a prime (103211220121) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 521268690 + ... + 521268887.

It is an arithmetic number, because the mean of its divisors is an integer number (13552988514).

Almost surely, 2^103211220123 is an apocalyptic number.

103211220123 is a deficient number, since it is larger than the sum of its proper divisors (59424642045).

103211220123 is a wasteful number, since it uses less digits than its factorization.

103211220123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1042537594 (or 1042537591 counting only the distinct ones).

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

Adding to 103211220123 its reverse (321022112301), we get a palindrome (424233332424).

The spelling of 103211220123 in words is "one hundred three billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-three".