12020023043 has 16 divisors (see below), whose sum is σ = 14762340864. Its totient is φ = 9552090240.

The previous prime is 12020023021. The next prime is 12020023051. The reversal of 12020023043 is 34032002021.

It is not a de Polignac number, because 12020023043 - 2¹⁴ = 12020006659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is not an unprimeable number, because it can be changed into a prime (12020023073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 745823 + ... + 761768.

It is an arithmetic number, because the mean of its divisors is an integer number (922646304).

Almost surely, 2^12020023043 is an apocalyptic number.

12020023043 is a deficient number, since it is larger than the sum of its proper divisors (2742317821).

12020023043 is a wasteful number, since it uses less digits than its factorization.

12020023043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1507682.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 12020023043 its reverse (34032002021), we get a palindrome (46052025064).

The spelling of 12020023043 in words is "twelve billion, twenty million, twenty-three thousand, forty-three".