1212210120923 has 2 divisors, whose sum is σ = 1212210120924. Its totient is φ = 1212210120922.

The previous prime is 1212210120911. The next prime is 1212210120973. The reversal of 1212210120923 is 3290210122121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1212210120923 - 2⁶ = 1212210120859 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1212210120892 and 1212210120901.

It is not a weakly prime, because it can be changed into another prime (1212210120973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606105060461 + 606105060462.

It is an arithmetic number, because the mean of its divisors is an integer number (606105060462).

Almost surely, 2^{1212210120923} is an apocalyptic number.

1212210120923 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212210120923 is an equidigital number, since it uses as much as digits as its factorization.

1212210120923 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 26.

The spelling of 1212210120923 in words is "one trillion, two hundred twelve billion, two hundred ten million, one hundred twenty thousand, nine hundred twenty-three".