1230020002123 has 16 divisors (see below), whose sum is σ = 1356338054880. Its totient is φ = 1115382898080.

The previous prime is 1230020002103. The next prime is 1230020002139. The reversal of 1230020002123 is 3212000200321.

It is not a de Polignac number, because 1230020002123 - 2⁵ = 1230020002091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1230020002097 and 1230020002106.

It is not an unprimeable number, because it can be changed into a prime (1230020002103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 635488 + ... + 1692301.

It is an arithmetic number, because the mean of its divisors is an integer number (84771128430).

Almost surely, 2^{1230020002123} is an apocalyptic number.

1230020002123 is a deficient number, since it is larger than the sum of its proper divisors (126318052757).

1230020002123 is an equidigital number, since it uses as much as digits as its factorization.

1230020002123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2328219 (or 2328197 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 1230020002123 its reverse (3212000200321), we get a palindrome (4442020202444).

The spelling of 1230020002123 in words is "one trillion, two hundred thirty billion, twenty million, two thousand, one hundred twenty-three".