21411423033 has 96 divisors (see below), whose sum is σ = 40071346560. Its totient is φ = 9989360640.

The previous prime is 21411423029. The next prime is 21411423037. The reversal of 21411423033 is 33032411412.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (21411423029) and next prime (21411423037).

It is not a de Polignac number, because 21411423033 - 2² = 21411423029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21411422994 and 21411423012.

It is not an unprimeable number, because it can be changed into a prime (21411423037) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 764013 + ... + 791541.

It is an arithmetic number, because the mean of its divisors is an integer number (417409860).

Almost surely, 2^21411423033 is an apocalyptic number.

It is an amenable number.

21411423033 is a deficient number, since it is larger than the sum of its proper divisors (18659923527).

21411423033 is a wasteful number, since it uses less digits than its factorization.

21411423033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27607 (or 27600 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 21411423033 its reverse (33032411412), we get a palindrome (54443834445).

It can be divided in two parts, 21411 and 423033, that added together give a palindrome (444444).

The spelling of 21411423033 in words is "twenty-one billion, four hundred eleven million, four hundred twenty-three thousand, thirty-three".