21213416142033 has 4 divisors (see below), whose sum is σ = 28284554856048. Its totient is φ = 14142277428020.

The previous prime is 21213416142013. The next prime is 21213416142047. The reversal of 21213416142033 is 33024161431212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 21213416142033 - 2⁶ = 21213416141969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21213416141985 and 21213416142003.

It is not an unprimeable number, because it can be changed into a prime (21213416142013) 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, 3535569357003 + ... + 3535569357008.

It is an arithmetic number, because the mean of its divisors is an integer number (7071138714012).

Almost surely, 2^{21213416142033} is an apocalyptic number.

It is an amenable number.

21213416142033 is a deficient number, since it is larger than the sum of its proper divisors (7071138714015).

21213416142033 is an equidigital number, since it uses as much as digits as its factorization.

21213416142033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071138714014.

The product of its (nonzero) digits is 20736, while the sum is 33.

Adding to 21213416142033 its reverse (33024161431212), we get a palindrome (54237577573245).

The spelling of 21213416142033 in words is "twenty-one trillion, two hundred thirteen billion, four hundred sixteen million, one hundred forty-two thousand, thirty-three".