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131200303212121 = 11137911613729593
BaseRepresentation
bin11101110101001101110011…
…011101111010011001011001
3122012112121220201021011120211
4131311031303131322121121
5114144041210110241441
61143012330501251121
736430623551523043
oct3565156335723131
9565477821234524
10131200303212121
1138893810862050
121286b5b8103aa1
13582919b923a40
1424581b2a94a93
151027c4abc9a81
hex77537377a659

131200303212121 has 16 divisors (see below), whose sum is σ = 156088525743360. Its totient is φ = 108704508981120.

The previous prime is 131200303212107. The next prime is 131200303212133. The reversal of 131200303212121 is 121212303002131.

It is not a de Polignac number, because 131200303212121 - 29 = 131200303211609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131200303212092 and 131200303212101.

It is not an unprimeable number, because it can be changed into a prime (131200303212521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5806853500 + ... + 5806876093.

It is an arithmetic number, because the mean of its divisors is an integer number (9755532858960).

Almost surely, 2131200303212121 is an apocalyptic number.

131200303212121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

131200303212121 is a deficient number, since it is larger than the sum of its proper divisors (24888222531239).

131200303212121 is a wasteful number, since it uses less digits than its factorization.

131200303212121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11613729696.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 131200303212121 its reverse (121212303002131), we get a palindrome (252412606214252).

The spelling of 131200303212121 in words is "one hundred thirty-one trillion, two hundred billion, three hundred three million, two hundred twelve thousand, one hundred twenty-one".

Divisors: 1 11 13 79 143 869 1027 11297 11613729593 127751025523 150978484709 917484637847 1660763331799 10092331016317 11927300292011 131200303212121