1212442103123 has 8 divisors (see below), whose sum is σ = 1223595843360. Its totient is φ = 1201288916160.

The previous prime is 1212442103113. The next prime is 1212442103137. The reversal of 1212442103123 is 3213012442121.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1212442103123 - 2²² = 1212437908819 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212442103092 and 1212442103101.

It is not an unprimeable number, because it can be changed into a prime (1212442103113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5211578 + ... + 5439248.

It is an arithmetic number, because the mean of its divisors is an integer number (152949480420).

Almost surely, 2^{1212442103123} is an apocalyptic number.

1212442103123 is a deficient number, since it is larger than the sum of its proper divisors (11153740237).

1212442103123 is a wasteful number, since it uses less digits than its factorization.

1212442103123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276637.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 1212442103123 its reverse (3213012442121), we get a palindrome (4425454545244).

The spelling of 1212442103123 in words is "one trillion, two hundred twelve billion, four hundred forty-two million, one hundred three thousand, one hundred twenty-three".