20122023043 has 4 divisors (see below), whose sum is σ = 20187567400. Its totient is φ = 20056478688.

The previous prime is 20122023029. The next prime is 20122023049. The reversal of 20122023043 is 34032022102.

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-20122023043 is a prime.

It is a super-2 number, since 2×20122023043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20122023043.

It is not an unprimeable number, because it can be changed into a prime (20122023049) 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 3 ways as a sum of consecutive naturals, for example, 32771718 + ... + 32772331.

It is an arithmetic number, because the mean of its divisors is an integer number (5046891850).

Almost surely, 2^20122023043 is an apocalyptic number.

20122023043 is a deficient number, since it is larger than the sum of its proper divisors (65544357).

20122023043 is an equidigital number, since it uses as much as digits as its factorization.

20122023043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65544356.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20122023043 its reverse (34032022102), we get a palindrome (54154045145).

The spelling of 20122023043 in words is "twenty billion, one hundred twenty-two million, twenty-three thousand, forty-three".