10220120123 has 4 divisors (see below), whose sum is σ = 10222539888. Its totient is φ = 10217700360.

The previous prime is 10220120107. The next prime is 10220120153. The reversal of 10220120123 is 32102102201.

It is a happy number.

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 10220120123 - 2⁴ = 10220120107 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10220120098 and 10220120107.

It is not an unprimeable number, because it can be changed into a prime (10220120153) 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, 1203536 + ... + 1211997.

It is an arithmetic number, because the mean of its divisors is an integer number (2555634972).

Almost surely, 2^10220120123 is an apocalyptic number.

10220120123 is a deficient number, since it is larger than the sum of its proper divisors (2419765).

10220120123 is an equidigital number, since it uses as much as digits as its factorization.

10220120123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2419764.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 10220120123 its reverse (32102102201), we get a palindrome (42322222324).

The spelling of 10220120123 in words is "ten billion, two hundred twenty million, one hundred twenty thousand, one hundred twenty-three".