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212103033131 = 11101190911821
BaseRepresentation
bin1100010110001001010…
…0110111000100101011
3202021110211021110201202
43011202110313010223
511433341334030011
6241234440034415
721216053014613
oct3054224670453
9667424243652
10212103033131
1181a526a6120
1235134a62a0b
1317002919c42
14a3a167da43
1557b5c9823b
hex316253712b

212103033131 has 8 divisors (see below), whose sum is σ = 233676070128. Its totient is φ = 190911820000.

The previous prime is 212103033091. The next prime is 212103033139. The reversal of 212103033131 is 131330301212.

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

It is not a de Polignac number, because 212103033131 - 234 = 194923163947 is a prime.

It is a super-2 number, since 2×2121030331312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212103033139) 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, 95454800 + ... + 95457021.

It is an arithmetic number, because the mean of its divisors is an integer number (29209508766).

Almost surely, 2212103033131 is an apocalyptic number.

212103033131 is a deficient number, since it is larger than the sum of its proper divisors (21573036997).

212103033131 is a wasteful number, since it uses less digits than its factorization.

212103033131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190911933.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 212103033131 its reverse (131330301212), we get a palindrome (343433334343).

The spelling of 212103033131 in words is "two hundred twelve billion, one hundred three million, thirty-three thousand, one hundred thirty-one".

Divisors: 1 11 101 1111 190911821 2100030031 19282093921 212103033131