21101133231032 has 128 divisors (see below), whose sum is σ = 43395505574400. Its totient is φ = 9583624512000.

The previous prime is 21101133231011. The next prime is 21101133231037. The reversal of 21101133231032 is 23013233110112.

It is a super-3 number, since 3×21101133231032³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21101133230989 and 21101133231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21101133231037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 931564907 + ... + 931587557.

It is an arithmetic number, because the mean of its divisors is an integer number (339027387300).

Almost surely, 2^{21101133231032} is an apocalyptic number.

It is an amenable number.

21101133231032 is an abundant number, since it is smaller than the sum of its proper divisors (22294372343368).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21101133231032 is a wasteful number, since it uses less digits than its factorization.

21101133231032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25117 (or 25113 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 21101133231032 its reverse (23013233110112), we get a palindrome (44114366341144).

The spelling of 21101133231032 in words is "twenty-one trillion, one hundred one billion, one hundred thirty-three million, two hundred thirty-one thousand, thirty-two".