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131021302323102 = 232311932293347071
BaseRepresentation
bin11101110010100111000110…
…001011101101011110011110
3122011220111212211111211221120
4131302213012023231132132
5114133123111343314402
61142354204431111410
736411656004211662
oct3562470613553636
9564814784454846
10131021302323102
1138824905496824
1212840981072566
135815342c97b29
14244d6718548a2
1510232710793bc
hex7729c62ed79e

131021302323102 has 64 divisors (see below), whose sum is σ = 273785098346496. Its totient is φ = 41721567909120.

The previous prime is 131021302323097. The next prime is 131021302323181. The reversal of 131021302323102 is 201323203120131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 377332227 + ... + 377679297.

It is an arithmetic number, because the mean of its divisors is an integer number (4277892161664).

Almost surely, 2131021302323102 is an apocalyptic number.

131021302323102 is an abundant number, since it is smaller than the sum of its proper divisors (142763796023394).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131021302323102 is a wasteful number, since it uses less digits than its factorization.

131021302323102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350585.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 131021302323102 its reverse (201323203120131), we get a palindrome (332344505443233).

The spelling of 131021302323102 in words is "one hundred thirty-one trillion, twenty-one billion, three hundred two million, three hundred twenty-three thousand, one hundred two".

Divisors: 1 2 3 6 23 46 69 138 1193 2293 2386 3579 4586 6879 7158 13758 27439 52739 54878 82317 105478 158217 164634 316434 347071 694142 1041213 2082426 2735549 5471098 7982633 8206647 15965266 16413294 23947899 47895798 62917627 125835254 188752881 377505762 414055703 795833803 828111406 1242167109 1591667606 2387501409 2484334218 4775002818 9523281169 18304177469 19046562338 28569843507 36608354938 54912532407 57139687014 109825064814 949429726979 1898859453958 2848289180937 5696578361874 21836883720517 43673767441034 65510651161551 131021302323102