21000141143123 has 2 divisors, whose sum is σ = 21000141143124. Its totient is φ = 21000141143122.

The previous prime is 21000141143119. The next prime is 21000141143203. The reversal of 21000141143123 is 32134114100012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21000141143123 - 2² = 21000141143119 is a prime.

It is not a weakly prime, because it can be changed into another prime (21000141140123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10500070571561 + 10500070571562.

It is an arithmetic number, because the mean of its divisors is an integer number (10500070571562).

Almost surely, 2^{21000141143123} is an apocalyptic number.

21000141143123 is a deficient number, since it is larger than the sum of its proper divisors (1).

21000141143123 is an equidigital number, since it uses as much as digits as its factorization.

21000141143123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 21000141143123 its reverse (32134114100012), we get a palindrome (53134255243135).

The spelling of 21000141143123 in words is "twenty-one trillion, one hundred forty-one million, one hundred forty-three thousand, one hundred twenty-three".