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212302002331 = 1532811385051
BaseRepresentation
bin1100010110111000101…
…1110111100010011011
3202021222200200011011101
43011232023313202123
511434243303033311
6241310304412231
721224020150006
oct3055613674233
9667880604141
10212302002331
1182044a44681
123518b617077
1317034c02cb3
14a3bdc7453d
1557c849bec1
hex316e2f789b

212302002331 has 4 divisors (see below), whose sum is σ = 212303540664. Its totient is φ = 212300464000.

The previous prime is 212302002301. The next prime is 212302002347. The reversal of 212302002331 is 133200203212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212302002331 - 29 = 212302001819 is a prime.

It is a super-2 number, since 2×2123020023312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212302002299 and 212302002308.

It is not an unprimeable number, because it can be changed into a prime (212302002301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 539245 + ... + 845806.

It is an arithmetic number, because the mean of its divisors is an integer number (53075885166).

Almost surely, 2212302002331 is an apocalyptic number.

212302002331 is a deficient number, since it is larger than the sum of its proper divisors (1538333).

212302002331 is a wasteful number, since it uses less digits than its factorization.

212302002331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1538332.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 212302002331 its reverse (133200203212), we get a palindrome (345502205543).

The spelling of 212302002331 in words is "two hundred twelve billion, three hundred two million, two thousand, three hundred thirty-one".

Divisors: 1 153281 1385051 212302002331