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21231031102332 = 2232348517533511
BaseRepresentation
bin1001101001111001111000…
…00100010010101101111100
32210011200000001122221111120
410310330330010102231330
510240322122430233312
6113053222342550540
74320614512524012
oct464747404225574
983150001587446
1021231031102332
116846036624647
12246a871438450
13bb010177064c
14535831b168b2
1526c403e7228c
hex134f3c112b7c

21231031102332 has 24 divisors (see below), whose sum is σ = 49539290086272. Its totient is φ = 7076979294000.

The previous prime is 21231031102321. The next prime is 21231031102357. The reversal of 21231031102332 is 23320113013212.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 948544 + ... + 6584967.

It is an arithmetic number, because the mean of its divisors is an integer number (2064137086928).

Almost surely, 221231031102332 is an apocalyptic number.

It is an amenable number.

21231031102332 is an abundant number, since it is smaller than the sum of its proper divisors (28308258983940).

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

21231031102332 is a wasteful number, since it uses less digits than its factorization.

21231031102332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7768369 (or 7768367 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21231031102332 its reverse (23320113013212), we get a palindrome (44551144115544).

The spelling of 21231031102332 in words is "twenty-one trillion, two hundred thirty-one billion, thirty-one million, one hundred two thousand, three hundred thirty-two".

Divisors: 1 2 3 4 6 12 234851 469702 704553 939404 1409106 2818212 7533511 15067022 22600533 30134044 45201066 90402132 1769252591861 3538505183722 5307757775583 7077010367444 10615515551166 21231031102332