21100210311032 has 16 divisors (see below), whose sum is σ = 39562947849600. Its totient is φ = 10550090884480.

The previous prime is 21100210310951. The next prime is 21100210311053. The reversal of 21100210311032 is 23011301200112.

It is a super-2 number, since 2×21100210311032² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21100210311032.

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, 7105769 + ... + 9627687.

It is an arithmetic number, because the mean of its divisors is an integer number (2472684240600).

Almost surely, 2^{21100210311032} is an apocalyptic number.

It is an amenable number.

21100210311032 is a deficient number, since it is larger than the sum of its proper divisors (18462737538568).

21100210311032 is a wasteful number, since it uses less digits than its factorization.

21100210311032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3567766 (or 3567762 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 21100210311032 its reverse (23011301200112), we get a palindrome (44111511511144).

The spelling of 21100210311032 in words is "twenty-one trillion, one hundred billion, two hundred ten million, three hundred eleven thousand, thirty-two".