21333043130411 has 4 divisors (see below), whose sum is σ = 21372475743024. Its totient is φ = 21293610517800.

The previous prime is 21333043130387. The next prime is 21333043130417. The reversal of 21333043130411 is 11403134033312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21333043130411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21333043130417) 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, 19716305495 + ... + 19716306576.

It is an arithmetic number, because the mean of its divisors is an integer number (5343118935756).

Almost surely, 2^{21333043130411} is an apocalyptic number.

21333043130411 is a deficient number, since it is larger than the sum of its proper divisors (39432612613).

21333043130411 is an equidigital number, since it uses as much as digits as its factorization.

21333043130411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39432612612.

The product of its (nonzero) digits is 7776, while the sum is 29.

Adding to 21333043130411 its reverse (11403134033312), we get a palindrome (32736177163723).

The spelling of 21333043130411 in words is "twenty-one trillion, three hundred thirty-three billion, forty-three million, one hundred thirty thousand, four hundred eleven".