20374300043 has 4 divisors (see below), whose sum is σ = 20576025888. Its totient is φ = 20172574200.

The previous prime is 20374300031. The next prime is 20374300061. The reversal of 20374300043 is 34000347302.

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-20374300043 is a prime.

It is a super-2 number, since 2×20374300043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20374299985 and 20374300021.

It is not an unprimeable number, because it can be changed into a prime (20374380043) 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, 100862771 + ... + 100862972.

It is an arithmetic number, because the mean of its divisors is an integer number (5144006472).

Almost surely, 2^20374300043 is an apocalyptic number.

20374300043 is a deficient number, since it is larger than the sum of its proper divisors (201725845).

20374300043 is a wasteful number, since it uses less digits than its factorization.

20374300043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201725844.

The product of its (nonzero) digits is 6048, while the sum is 26.

Adding to 20374300043 its reverse (34000347302), we get a palindrome (54374647345).

The spelling of 20374300043 in words is "twenty billion, three hundred seventy-four million, three hundred thousand, forty-three".