40051212143 has 2 divisors, whose sum is σ = 40051212144. Its totient is φ = 40051212142.

The previous prime is 40051212139. The next prime is 40051212191. The reversal of 40051212143 is 34121215004.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 40051212143 - 2² = 40051212139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (40051212133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20025606071 + 20025606072.

It is an arithmetic number, because the mean of its divisors is an integer number (20025606072).

Almost surely, 2^40051212143 is an apocalyptic number.

40051212143 is a deficient number, since it is larger than the sum of its proper divisors (1).

40051212143 is an equidigital number, since it uses as much as digits as its factorization.

40051212143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 960, while the sum is 23.

Adding to 40051212143 its reverse (34121215004), we get a palindrome (74172427147).

The spelling of 40051212143 in words is "forty billion, fifty-one million, two hundred twelve thousand, one hundred forty-three".