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131202212121310 = 251110711147171803
BaseRepresentation
bin11101110101001111100101…
…001111110100101011011110
3122012112210211202012210201011
4131311033211033310223132
5114144104112300340220
61143013244132005434
736431022061140001
oct3565174517645336
9565483752183634
10131202212121310
1138894600342850
121286ba4b46087a
1358294142567c5
1424583143db538
151027d0d59765a
hex7753e53f4ade

131202212121310 has 32 divisors (see below), whose sum is σ = 260041223843712. Its totient is φ = 47264008440480.

The previous prime is 131202212121307. The next prime is 131202212121359. The reversal of 131202212121310 is 13121212202131.

It is a happy number.

It is a super-2 number, since 2×1312022121213102 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5573574132 + ... + 5573597671.

It is an arithmetic number, because the mean of its divisors is an integer number (8126288245116).

Almost surely, 2131202212121310 is an apocalyptic number.

131202212121310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

131202212121310 is a deficient number, since it is larger than the sum of its proper divisors (128839011722402).

131202212121310 is a wasteful number, since it uses less digits than its factorization.

131202212121310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11147171928.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 131202212121310 its reverse (13121212202131), we get a palindrome (144323424323441).

The spelling of 131202212121310 in words is "one hundred thirty-one trillion, two hundred two billion, two hundred twelve million, one hundred twenty-one thousand, three hundred ten".

Divisors: 1 2 5 10 11 22 55 107 110 214 535 1070 1177 2354 5885 11770 11147171803 22294343606 55735859015 111471718030 122618889833 245237779666 613094449165 1192747382921 1226188898330 2385494765842 5963736914605 11927473829210 13120221212131 26240442424262 65601106060655 131202212121310