1230111142443 has 24 divisors (see below), whose sum is σ = 1780768005120. Its totient is φ = 818255715120.

The previous prime is 1230111142361. The next prime is 1230111142517. The reversal of 1230111142443 is 3442411110321.

It is a happy number.

1230111142443 is a `hidden beast` number, since 1 + 2 + 301 + 1 + 114 + 244 + 3 = 666.

It is not a de Polignac number, because 1230111142443 - 2¹⁶ = 1230111076907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1230111142943) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46989748 + ... + 47015918.

It is an arithmetic number, because the mean of its divisors is an integer number (74198666880).

Almost surely, 2^{1230111142443} is an apocalyptic number.

1230111142443 is a deficient number, since it is larger than the sum of its proper divisors (550656862677).

1230111142443 is a wasteful number, since it uses less digits than its factorization.

1230111142443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37559 (or 37556 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

Adding to 1230111142443 its reverse (3442411110321), we get a palindrome (4672522252764).

The spelling of 1230111142443 in words is "one trillion, two hundred thirty billion, one hundred eleven million, one hundred forty-two thousand, four hundred forty-three".