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12001300131 = 3371031049707
BaseRepresentation
bin10110010110101010…
…10100111010100011
31010222101120012210110
423023111110322203
5144034313101011
65302513302403
7603255240132
oct131325247243
933871505713
1012001300131
1150a946a467
1223ab264a03
1311934cb532
1481bc79919
154a392aba6
hex2cb554ea3

12001300131 has 16 divisors (see below), whose sum is σ = 16593784064. Its totient is φ = 7709040864.

The previous prime is 12001300123. The next prime is 12001300151. The reversal of 12001300131 is 13100310021.

It is not a de Polignac number, because 12001300131 - 23 = 12001300123 is a prime.

It is a super-2 number, since 2×120013001312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12001300151) 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, 513421 + ... + 536286.

It is an arithmetic number, because the mean of its divisors is an integer number (1037111504).

Almost surely, 212001300131 is an apocalyptic number.

12001300131 is a deficient number, since it is larger than the sum of its proper divisors (4592483933).

12001300131 is a wasteful number, since it uses less digits than its factorization.

12001300131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1049850.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 12001300131 its reverse (13100310021), we get a palindrome (25101610152).

The spelling of 12001300131 in words is "twelve billion, one million, three hundred thousand, one hundred thirty-one".

Divisors: 1 3 37 103 111 309 3811 11433 1049707 3149121 38839159 108119821 116517477 324359463 4000433377 12001300131