21010101032 has 32 divisors (see below), whose sum is σ = 41742112320. Its totient is φ = 9879786240.

The previous prime is 21010100971. The next prime is 21010101041. The reversal of 21010101032 is 23010101012.

It is an alternating number because its digits alternate between even and odd.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 129407 + ... + 242417.

It is an arithmetic number, because the mean of its divisors is an integer number (1304441010).

Almost surely, 2^21010101032 is an apocalyptic number.

It is an amenable number.

21010101032 is a deficient number, since it is larger than the sum of its proper divisors (20732011288).

21010101032 is a wasteful number, since it uses less digits than its factorization.

21010101032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114401 (or 114397 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21010101032 its reverse (23010101012), we get a palindrome (44020202044).

The spelling of 21010101032 in words is "twenty-one billion, ten million, one hundred one thousand, thirty-two".