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12101003131 = 76312739643
BaseRepresentation
bin10110100010100011…
…01010011101111011
31011020100011122121011
423101101222131323
5144240324100011
65320434254351
7605605554340
oct132121523573
934210148534
1012101003131
11514a778838
1224187273b7
1311ab069aa9
1482b1d07c7
154ac572621
hex2d146a77b

12101003131 has 8 divisors (see below), whose sum is σ = 13851640064. Its totient is φ = 10355846760.

The previous prime is 12101003027. The next prime is 12101003137. The reversal of 12101003131 is 13130010121.

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

It is not a de Polignac number, because 12101003131 - 221 = 12098905979 is a prime.

It is a super-2 number, since 2×121010031312 (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 (12101003137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1365405 + ... + 1374238.

It is an arithmetic number, because the mean of its divisors is an integer number (1731455008).

Almost surely, 212101003131 is an apocalyptic number.

12101003131 is a deficient number, since it is larger than the sum of its proper divisors (1750636933).

12101003131 is an equidigital number, since it uses as much as digits as its factorization.

12101003131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2740281.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 12101003131 its reverse (13130010121), we get a palindrome (25231013252).

The spelling of 12101003131 in words is "twelve billion, one hundred one million, three thousand, one hundred thirty-one".

Divisors: 1 7 631 4417 2739643 19177501 1728714733 12101003131