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212003320131 = 3237636646607
BaseRepresentation
bin1100010101110001100…
…0011111000101000011
3202021012212122112012200
43011130120133011003
511433140322221011
6241220514524243
721213432326301
oct3053430370503
9667185575180
10212003320131
1181a01390289
1235107596683
1316cb8076c75
14a392325271
1557ac14d856
hex315c61f143

212003320131 has 12 divisors (see below), whose sum is σ = 314503424352. Its totient is φ = 137515666896.

The previous prime is 212003320117. The next prime is 212003320171. The reversal of 212003320131 is 131023300212.

212003320131 is a `hidden beast` number, since 2 + 1 + 200 + 332 + 0 + 131 = 666.

It is not a de Polignac number, because 212003320131 - 211 = 212003318083 is a prime.

It is a super-2 number, since 2×2120033201312 (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212003320171) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 318322971 + ... + 318323636.

It is an arithmetic number, because the mean of its divisors is an integer number (26208618696).

Almost surely, 2212003320131 is an apocalyptic number.

212003320131 is a deficient number, since it is larger than the sum of its proper divisors (102500104221).

212003320131 is a wasteful number, since it uses less digits than its factorization.

212003320131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636646650 (or 636646647 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212003320131 its reverse (131023300212), we get a palindrome (343026620343).

The spelling of 212003320131 in words is "two hundred twelve billion, three million, three hundred twenty thousand, one hundred thirty-one".

Divisors: 1 3 9 37 111 333 636646607 1909939821 5729819463 23555924459 70667773377 212003320131