10103210123 has 4 divisors (see below), whose sum is σ = 10118682768. Its totient is φ = 10087737480.

The previous prime is 10103210101. The next prime is 10103210137. The reversal of 10103210123 is 32101230101.

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 10103210123 - 2¹² = 10103206027 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10103210098 and 10103210107.

It is not an unprimeable number, because it can be changed into a prime (10103240123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7735343 + ... + 7736648.

It is an arithmetic number, because the mean of its divisors is an integer number (2529670692).

Almost surely, 2^10103210123 is an apocalyptic number.

10103210123 is a deficient number, since it is larger than the sum of its proper divisors (15472645).

10103210123 is an equidigital number, since it uses as much as digits as its factorization.

10103210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15472644.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10103210123 its reverse (32101230101), we get a palindrome (42204440224).

The spelling of 10103210123 in words is "ten billion, one hundred three million, two hundred ten thousand, one hundred twenty-three".