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12133101031 = 61319792987
BaseRepresentation
bin10110100110011000…
…00110110111100111
31011022120120101122021
423103030012313213
5144322033213111
65323542244011
7606445441252
oct132314066747
934276511567
1012133101031
115166901427
122427426607
1311b48c792c
14831588099
154b02b2d71
hex2d3306de7

12133101031 has 4 divisors (see below), whose sum is σ = 12152894632. Its totient is φ = 12113307432.

The previous prime is 12133101017. The next prime is 12133101041. The reversal of 12133101031 is 13010133121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12133101031 - 221 = 12131003879 is a prime.

It is a super-2 number, since 2×121331010312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12133100996 and 12133101014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133101041) 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 3 ways as a sum of consecutive naturals, for example, 9895881 + ... + 9897106.

It is an arithmetic number, because the mean of its divisors is an integer number (3038223658).

Almost surely, 212133101031 is an apocalyptic number.

12133101031 is a deficient number, since it is larger than the sum of its proper divisors (19793601).

12133101031 is an equidigital number, since it uses as much as digits as its factorization.

12133101031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19793600.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 12133101031 its reverse (13010133121), we get a palindrome (25143234152).

The spelling of 12133101031 in words is "twelve billion, one hundred thirty-three million, one hundred one thousand, thirty-one".

Divisors: 1 613 19792987 12133101031