1012020234243 has 4 divisors (see below), whose sum is σ = 1349360312328. Its totient is φ = 674680156160.

The previous prime is 1012020234229. The next prime is 1012020234259. The reversal of 1012020234243 is 3424320202101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 1012020234243 - 2¹⁸ = 1012019972099 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1012020234263) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 168670039038 + ... + 168670039043.

It is an arithmetic number, because the mean of its divisors is an integer number (337340078082).

Almost surely, 2^{1012020234243} is an apocalyptic number.

1012020234243 is a deficient number, since it is larger than the sum of its proper divisors (337340078085).

1012020234243 is an equidigital number, since it uses as much as digits as its factorization.

1012020234243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 337340078084.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1012020234243 its reverse (3424320202101), we get a palindrome (4436340436344).

The spelling of 1012020234243 in words is "one trillion, twelve billion, twenty million, two hundred thirty-four thousand, two hundred forty-three".