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331012131012213 = 372392275948993
BaseRepresentation
bin100101101000011011100010…
…0011111000011111001110101
31121102000110011112201001010220
41023100313010133003321311
5321341300321014342323
63132000512415404553
7126502560116630010
oct11320670437037165
91542013145631126
10331012131012213
119651a5025404a2
1231160450b23759
1311291405155821
145ba51033cc377
1528405b9d9d0e3
hex12d0dc47c3e75

331012131012213 has 24 divisors (see below), whose sum is σ = 506518727834688. Its totient is φ = 188358366755328.

The previous prime is 331012131012187. The next prime is 331012131012221. The reversal of 331012131012213 is 312210131210133.

It is not a de Polignac number, because 331012131012213 - 214 = 331012130995829 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331012131012313) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 136774956 + ... + 139174037.

It is an arithmetic number, because the mean of its divisors is an integer number (21104946993112).

Almost surely, 2331012131012213 is an apocalyptic number.

It is an amenable number.

331012131012213 is a deficient number, since it is larger than the sum of its proper divisors (175506596822475).

331012131012213 is an equidigital number, since it uses as much as digits as its factorization.

331012131012213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 275949481 (or 275949242 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 331012131012213 its reverse (312210131210133), we get a palindrome (643222262222346).

The spelling of 331012131012213 in words is "three hundred thirty-one trillion, twelve billion, one hundred thirty-one million, twelve thousand, two hundred thirteen".

Divisors: 1 3 7 21 239 717 1673 5019 57121 171363 399847 1199541 275948993 827846979 1931642951 5794928853 65951809327 197855427981 461662665289 1384987995867 15762482429153 47287447287459 110337377004071 331012131012213