10123210123 has 8 divisors (see below), whose sum is σ = 10914361808. Its totient is φ = 9333836064.

The previous prime is 10123210081. The next prime is 10123210157. The reversal of 10123210123 is 32101232101.

10123210123 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10123210123 - 2¹⁷ = 10123079051 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 = 10123210097 and 10123210106.

It is not an unprimeable number, because it can be changed into a prime (10123210423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 432561 + ... + 455362.

It is an arithmetic number, because the mean of its divisors is an integer number (1364295226).

Almost surely, 2^10123210123 is an apocalyptic number.

10123210123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

10123210123 is a deficient number, since it is larger than the sum of its proper divisors (791151685).

10123210123 is an equidigital number, since it uses as much as digits as its factorization.

10123210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 888813.

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

Adding to 10123210123 its reverse (32101232101), we get a palindrome (42224442224).

The spelling of 10123210123 in words is "ten billion, one hundred twenty-three million, two hundred ten thousand, one hundred twenty-three".