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212021111323 = 770143207889
BaseRepresentation
bin1100010101110101110…
…0010110101000011011
3202021021010010102010201
43011131130112220123
511433204401030243
6241222352123031
721214036465540
oct3053534265033
9667233112121
10212021111323
1181a1043204a
1235111536477
1316cbb965bb8
14a394836bc7
1557ad9b504d
hex315d716a1b

212021111323 has 8 divisors (see below), whose sum is σ = 242655510240. Its totient is φ = 181473129600.

The previous prime is 212021111279. The next prime is 212021111329. The reversal of 212021111323 is 323111120212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212021111323 - 29 = 212021110811 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212021111323.

It is not an unprimeable number, because it can be changed into a prime (212021111329) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21599038 + ... + 21608851.

It is an arithmetic number, because the mean of its divisors is an integer number (30331938780).

Almost surely, 2212021111323 is an apocalyptic number.

212021111323 is a deficient number, since it is larger than the sum of its proper divisors (30634398917).

212021111323 is an equidigital number, since it uses as much as digits as its factorization.

212021111323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43208597.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212021111323 its reverse (323111120212), we get a palindrome (535132231535).

The spelling of 212021111323 in words is "two hundred twelve billion, twenty-one million, one hundred eleven thousand, three hundred twenty-three".

Divisors: 1 7 701 4907 43207889 302455223 30288730189 212021111323