21403013041 has 8 divisors (see below), whose sum is σ = 21690736704. Its totient is φ = 21116000400.

The previous prime is 21403013017. The next prime is 21403013083. The reversal of 21403013041 is 14031030412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21403013041 - 2⁷ = 21403012913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21403013341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 117010 + ... + 237691.

It is an arithmetic number, because the mean of its divisors is an integer number (2711342088).

Almost surely, 2^21403013041 is an apocalyptic number.

It is an amenable number.

21403013041 is a deficient number, since it is larger than the sum of its proper divisors (287723663).

21403013041 is an equidigital number, since it uses as much as digits as its factorization.

21403013041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 355511.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21403013041 its reverse (14031030412), we get a palindrome (35434043453).

The spelling of 21403013041 in words is "twenty-one billion, four hundred three million, thirteen thousand, forty-one".