20101400043 has 4 divisors (see below), whose sum is σ = 26801866728. Its totient is φ = 13400933360.

The previous prime is 20101400041. The next prime is 20101400051. The reversal of 20101400043 is 34000410102.

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 20101400043 - 2¹ = 20101400041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20101399995 and 20101400031.

It is not an unprimeable number, because it can be changed into a prime (20101400041) 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, 3350233338 + ... + 3350233343.

It is an arithmetic number, because the mean of its divisors is an integer number (6700466682).

Almost surely, 2^20101400043 is an apocalyptic number.

20101400043 is a deficient number, since it is larger than the sum of its proper divisors (6700466685).

20101400043 is an equidigital number, since it uses as much as digits as its factorization.

20101400043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6700466684.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 20101400043 its reverse (34000410102), we get a palindrome (54101810145).

The spelling of 20101400043 in words is "twenty billion, one hundred one million, four hundred thousand, forty-three".