10321210123 has 4 divisors (see below), whose sum is σ = 11795668720. Its totient is φ = 8846751528.

The previous prime is 10321210111. The next prime is 10321210177. The reversal of 10321210123 is 32101212301.

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 10321210123 - 2⁹ = 10321209611 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 = 10321210097 and 10321210106.

It is not an unprimeable number, because it can be changed into a prime (10321210423) 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, 737229288 + ... + 737229301.

It is an arithmetic number, because the mean of its divisors is an integer number (2948917180).

Almost surely, 2^10321210123 is an apocalyptic number.

10321210123 is a deficient number, since it is larger than the sum of its proper divisors (1474458597).

10321210123 is an equidigital number, since it uses as much as digits as its factorization.

10321210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1474458596.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 10321210123 its reverse (32101212301), we get a palindrome (42422422424).

The spelling of 10321210123 in words is "ten billion, three hundred twenty-one million, two hundred ten thousand, one hundred twenty-three".