21310001133 has 16 divisors (see below), whose sum is σ = 29929759680. Its totient is φ = 13449504384.

The previous prime is 21310001117. The next prime is 21310001159. The reversal of 21310001133 is 33110001312.

It is not a de Polignac number, because 21310001133 - 2⁴ = 21310001117 is a prime.

It is a super-2 number, since 2×21310001133² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21310001033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48766 + ... + 212127.

It is an arithmetic number, because the mean of its divisors is an integer number (1870609980).

Almost surely, 2^21310001133 is an apocalyptic number.

It is an amenable number.

21310001133 is a deficient number, since it is larger than the sum of its proper divisors (8619758547).

21310001133 is a wasteful number, since it uses less digits than its factorization.

21310001133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262348.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21310001133 its reverse (33110001312), we get a palindrome (54420002445).

The spelling of 21310001133 in words is "twenty-one billion, three hundred ten million, one thousand, one hundred thirty-three".