12311120342 has 4 divisors (see below), whose sum is σ = 18466680516. Its totient is φ = 6155560170.

The previous prime is 12311120291. The next prime is 12311120377. The reversal of 12311120342 is 24302111321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 24302111321 = 7759 ⋅3132119.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3077780084 + ... + 3077780087.

It is an arithmetic number, because the mean of its divisors is an integer number (4616670129).

Almost surely, 2^12311120342 is an apocalyptic number.

12311120342 is a deficient number, since it is larger than the sum of its proper divisors (6155560174).

12311120342 is an equidigital number, since it uses as much as digits as its factorization.

12311120342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6155560173.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 12311120342 its reverse (24302111321), we get a palindrome (36613231663).

The spelling of 12311120342 in words is "twelve billion, three hundred eleven million, one hundred twenty thousand, three hundred forty-two".