21411042033 has 8 divisors (see below), whose sum is σ = 29789275968. Its totient is φ = 13653418064.

The previous prime is 21411042019. The next prime is 21411042047. The reversal of 21411042033 is 33024011412.

It is an interprime number because it is at equal distance from previous prime (21411042019) and next prime (21411042047).

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 21411042033 - 2⁹ = 21411041521 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21411042013) 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, 155152410 + ... + 155152547.

It is an arithmetic number, because the mean of its divisors is an integer number (3723659496).

Almost surely, 2^21411042033 is an apocalyptic number.

21411042033 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

21411042033 is a deficient number, since it is larger than the sum of its proper divisors (8378233935).

21411042033 is a wasteful number, since it uses less digits than its factorization.

21411042033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 310304983.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 21411042033 its reverse (33024011412), we get a palindrome (54435053445).

The spelling of 21411042033 in words is "twenty-one billion, four hundred eleven million, forty-two thousand, thirty-three".