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3031211202131 = 72318827398771
BaseRepresentation
bin101100000111000010010…
…001000101011001010011
3101201210002022122121210102
4230013002101011121103
5344130410031432011
610240304051523015
7431666145045350
oct54070221053123
911653068577712
103031211202131
11a69590777902
1240b5765b946b
1318cac3b0c248
14a69d6149627
1553cae86c73b
hex2c1c2445653

3031211202131 has 8 divisors (see below), whose sum is σ = 3614860564224. Its totient is φ = 2485216637640.

The previous prime is 3031211202121. The next prime is 3031211202143. The reversal of 3031211202131 is 1312021121303.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3031211202131 - 230 = 3030137460307 is a prime.

It is a super-2 number, since 2×30312112021312 (a number of 26 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (3031211202121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9413699225 + ... + 9413699546.

It is an arithmetic number, because the mean of its divisors is an integer number (451857570528).

Almost surely, 23031211202131 is an apocalyptic number.

3031211202131 is a deficient number, since it is larger than the sum of its proper divisors (583649362093).

3031211202131 is a wasteful number, since it uses less digits than its factorization.

3031211202131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18827398801.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 3031211202131 its reverse (1312021121303), we get a palindrome (4343232323434).

The spelling of 3031211202131 in words is "three trillion, thirty-one billion, two hundred eleven million, two hundred two thousand, one hundred thirty-one".

Divisors: 1 7 23 161 18827398771 131791791397 433030171733 3031211202131