21101133029 has 2 divisors, whose sum is σ = 21101133030. Its totient is φ = 21101133028.

The previous prime is 21101132999. The next prime is 21101133037. The reversal of 21101133029 is 92033110112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 18679508929 + 2421624100 = 136673^2 + 49210^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21101133029 is a prime.

It is a super-3 number, since 3×21101133029³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21101132995 and 21101133013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21101133089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10550566514 + 10550566515.

It is an arithmetic number, because the mean of its divisors is an integer number (10550566515).

Almost surely, 2^21101133029 is an apocalyptic number.

It is an amenable number.

21101133029 is a deficient number, since it is larger than the sum of its proper divisors (1).

21101133029 is an equidigital number, since it uses as much as digits as its factorization.

21101133029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

The spelling of 21101133029 in words is "twenty-one billion, one hundred one million, one hundred thirty-three thousand, twenty-nine".