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121310441131 = 11331136724373
BaseRepresentation
bin111000011111010101…
…0100110111010101011
3102121010022222220210011
41300332222212322223
53441420433104011
6131421303432351
711523120510325
oct1607652467253
9377108886704
10121310441131
11474a1643a20
121b6167556b7
13b593839919
145c2b3c4615
153250059621
hex1c3eaa6eab

121310441131 has 16 divisors (see below), whose sum is σ = 132841029888. Its totient is φ = 109864101600.

The previous prime is 121310441113. The next prime is 121310441137. The reversal of 121310441131 is 131144013121.

It is not a de Polignac number, because 121310441131 - 213 = 121310432939 is a prime.

It is a super-2 number, since 2×1213104411312 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121310441137) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4965061 + ... + 4989433.

It is an arithmetic number, because the mean of its divisors is an integer number (8302564368).

Almost surely, 2121310441131 is an apocalyptic number.

121310441131 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

121310441131 is a deficient number, since it is larger than the sum of its proper divisors (11530588757).

121310441131 is a wasteful number, since it uses less digits than its factorization.

121310441131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26082.

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

Adding to 121310441131 its reverse (131144013121), we get a palindrome (252454454252).

The spelling of 121310441131 in words is "one hundred twenty-one billion, three hundred ten million, four hundred forty-one thousand, one hundred thirty-one".

Divisors: 1 11 331 1367 3641 15037 24373 268103 452477 4977247 8067463 33317891 88742093 366496801 11028221921 121310441131