103013021123 has 4 divisors (see below), whose sum is σ = 103191553800. Its totient is φ = 102834488448.

The previous prime is 103013021119. The next prime is 103013021141. The reversal of 103013021123 is 321120310301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103013021123 - 2² = 103013021119 is a prime.

It is a super-2 number, since 2×103013021123² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103013021113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 89265473 + ... + 89266626.

It is an arithmetic number, because the mean of its divisors is an integer number (25797888450).

Almost surely, 2^103013021123 is an apocalyptic number.

103013021123 is a deficient number, since it is larger than the sum of its proper divisors (178532677).

103013021123 is an equidigital number, since it uses as much as digits as its factorization.

103013021123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 178532676.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 103013021123 its reverse (321120310301), we get a palindrome (424133331424).

The spelling of 103013021123 in words is "one hundred three billion, thirteen million, twenty-one thousand, one hundred twenty-three".