21141036043 has 4 divisors (see below), whose sum is σ = 21632688088. Its totient is φ = 20649384000.

The previous prime is 21141036023. The next prime is 21141036073. The reversal of 21141036043 is 34063014112.

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 21141036043 - 2²⁵ = 21107481611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21141035999 and 21141036017.

It is not an unprimeable number, because it can be changed into a prime (21141036023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245825958 + ... + 245826043.

It is an arithmetic number, because the mean of its divisors is an integer number (5408172022).

Almost surely, 2^21141036043 is an apocalyptic number.

21141036043 is a deficient number, since it is larger than the sum of its proper divisors (491652045).

21141036043 is an equidigital number, since it uses as much as digits as its factorization.

21141036043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491652044.

The product of its (nonzero) digits is 1728, while the sum is 25.

The spelling of 21141036043 in words is "twenty-one billion, one hundred forty-one million, thirty-six thousand, forty-three".