21101011132 has 12 divisors (see below), whose sum is σ = 37130786056. Its totient is φ = 10492215120.

The previous prime is 21101011103. The next prime is 21101011147. The reversal of 21101011132 is 23111010112.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14571798 + ... + 14573245.

Almost surely, 2^21101011132 is an apocalyptic number.

It is an amenable number.

21101011132 is a deficient number, since it is larger than the sum of its proper divisors (16029774924).

21101011132 is a wasteful number, since it uses less digits than its factorization.

21101011132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29145228 (or 29145226 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 21101011132 its reverse (23111010112), we get a palindrome (44212021244).

The spelling of 21101011132 in words is "twenty-one billion, one hundred one million, eleven thousand, one hundred thirty-two".