21103333023211 has 2 divisors, whose sum is σ = 21103333023212. Its totient is φ = 21103333023210.

The previous prime is 21103333023187. The next prime is 21103333023233. The reversal of 21103333023211 is 11232033330112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 21103333023211 - 2²³ = 21103324634603 is a prime.

It is not a weakly prime, because it can be changed into another prime (21103333093211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10551666511605 + 10551666511606.

It is an arithmetic number, because the mean of its divisors is an integer number (10551666511606).

Almost surely, 2^{21103333023211} is an apocalyptic number.

21103333023211 is a deficient number, since it is larger than the sum of its proper divisors (1).

21103333023211 is an equidigital number, since it uses as much as digits as its factorization.

21103333023211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 21103333023211 its reverse (11232033330112), we get a palindrome (32335366353323).

The spelling of 21103333023211 in words is "twenty-one trillion, one hundred three billion, three hundred thirty-three million, twenty-three thousand, two hundred eleven".