1212300023123 has 48 divisors (see below), whose sum is σ = 1419701267712. Its totient is φ = 1014025521600.

The previous prime is 1212300023119. The next prime is 1212300023153. The reversal of 1212300023123 is 3213200032121.

It is not a de Polignac number, because 1212300023123 - 2² = 1212300023119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212300023095 and 1212300023104.

It is not an unprimeable number, because it can be changed into a prime (1212300023153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2216270336 + ... + 2216270882.

It is an arithmetic number, because the mean of its divisors is an integer number (29577109744).

Almost surely, 2^{1212300023123} is an apocalyptic number.

1212300023123 is a deficient number, since it is larger than the sum of its proper divisors (207401244589).

1212300023123 is an equidigital number, since it uses as much as digits as its factorization.

1212300023123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1224 (or 1153 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1212300023123 its reverse (3213200032121), we get a palindrome (4425500055244).

The spelling of 1212300023123 in words is "one trillion, two hundred twelve billion, three hundred million, twenty-three thousand, one hundred twenty-three".