1211230124323 has 4 divisors (see below), whose sum is σ = 1237000978080. Its totient is φ = 1185459270568.

The previous prime is 1211230124287. The next prime is 1211230124339. The reversal of 1211230124323 is 3234210321121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1211230124323 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211230124353) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12885426808 + ... + 12885426901.

It is an arithmetic number, because the mean of its divisors is an integer number (309250244520).

Almost surely, 2^{1211230124323} is an apocalyptic number.

1211230124323 is a deficient number, since it is larger than the sum of its proper divisors (25770853757).

1211230124323 is an equidigital number, since it uses as much as digits as its factorization.

1211230124323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25770853756.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 1211230124323 its reverse (3234210321121), we get a palindrome (4445440445444).

The spelling of 1211230124323 in words is "one trillion, two hundred eleven billion, two hundred thirty million, one hundred twenty-four thousand, three hundred twenty-three".