1212323333123 has 16 divisors (see below), whose sum is σ = 1458541432320. Its totient is φ = 984370548096.

The previous prime is 1212323333113. The next prime is 1212323333171. The reversal of 1212323333123 is 3213333232121.

It is a cyclic number.

It is not a de Polignac number, because 1212323333123 - 2¹⁸ = 1212323070979 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1212323333113) 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, 1516586 + ... + 2173632.

It is an arithmetic number, because the mean of its divisors is an integer number (91158839520).

Almost surely, 2^{1212323333123} is an apocalyptic number.

1212323333123 is a deficient number, since it is larger than the sum of its proper divisors (246218099197).

1212323333123 is a wasteful number, since it uses less digits than its factorization.

1212323333123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670946.

The product of its digits is 11664, while the sum is 29.

Adding to 1212323333123 its reverse (3213333232121), we get a palindrome (4425656565244).

The spelling of 1212323333123 in words is "one trillion, two hundred twelve billion, three hundred twenty-three million, three hundred thirty-three thousand, one hundred twenty-three".