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2131312030202 = 210919350656273
BaseRepresentation
bin11111000000111100000…
…110001011000111111010
321112202021210121010200002
4133000330012023013322
5234404411334431302
64311040005313002
7306660620226245
oct37007406130772
97482253533602
102131312030202
117519800946a3
122a5090105762
13125c9c1c6824
14752282cc25c
153a69110ac02
hex1f03c18b1fa

2131312030202 has 16 divisors (see below), whose sum is σ = 3243014661480. Its totient is φ = 1050408456192.

The previous prime is 2131312030171. The next prime is 2131312030213. The reversal of 2131312030202 is 2020302131312.

It can be written as a sum of positive squares in 4 ways, for example, as 2121185432041 + 10126598161 = 1456429^2 + 100631^2 .

It is a super-3 number, since 3×21313120302023 (a number of 38 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25286063 + ... + 25370210.

Almost surely, 22131312030202 is an apocalyptic number.

2131312030202 is a deficient number, since it is larger than the sum of its proper divisors (1111702631278).

2131312030202 is a wasteful number, since it uses less digits than its factorization.

2131312030202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50656577.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 2131312030202 its reverse (2020302131312), we get a palindrome (4151614161514).

The spelling of 2131312030202 in words is "two trillion, one hundred thirty-one billion, three hundred twelve million, thirty thousand, two hundred two".

Divisors: 1 2 109 193 218 386 21037 42074 50656273 101312546 5521533757 9776660689 11043067514 19553321378 1065656015101 2131312030202