1212334431123 has 8 divisors (see below), whose sum is σ = 1618340924368. Its totient is φ = 807275445984.

The previous prime is 1212334431073. The next prime is 1212334431131. The reversal of 1212334431123 is 3211344332121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1212334431123 - 2⁹ = 1212334430611 is a prime.

It is a super-2 number, since 2×1212334431123² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1212334436123) 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 7 ways as a sum of consecutive naturals, for example, 236874040 + ... + 236879157.

It is an arithmetic number, because the mean of its divisors is an integer number (202292615546).

Almost surely, 2^{1212334431123} is an apocalyptic number.

1212334431123 is a deficient number, since it is larger than the sum of its proper divisors (406006493245).

1212334431123 is an equidigital number, since it uses as much as digits as its factorization.

1212334431123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473754053.

The product of its digits is 10368, while the sum is 30.

Adding to 1212334431123 its reverse (3211344332121), we get a palindrome (4423678763244).

The spelling of 1212334431123 in words is "one trillion, two hundred twelve billion, three hundred thirty-four million, four hundred thirty-one thousand, one hundred twenty-three".