21142114043 has 2 divisors, whose sum is σ = 21142114044. Its totient is φ = 21142114042.

The previous prime is 21142114031. The next prime is 21142114061. The reversal of 21142114043 is 34041124112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21142114043 - 2⁸ = 21142113787 is a prime.

It is not a weakly prime, because it can be changed into another prime (21142114003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10571057021 + 10571057022.

It is an arithmetic number, because the mean of its divisors is an integer number (10571057022).

Almost surely, 2^21142114043 is an apocalyptic number.

21142114043 is a deficient number, since it is larger than the sum of its proper divisors (1).

21142114043 is an equidigital number, since it uses as much as digits as its factorization.

21142114043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 21142114043 its reverse (34041124112), we get a palindrome (55183238155).

The spelling of 21142114043 in words is "twenty-one billion, one hundred forty-two million, one hundred fourteen thousand, forty-three".