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12130031033 = 26346121791
BaseRepresentation
bin10110100110000000…
…11001010110111001
31011022100210102101122
423103000121112321
5144320241443113
65323352355025
7606410363651
oct132300312671
934270712348
1012130031033
1151650a493a
1224263a5a75
1311b4091473
14830dc9361
154aeda8408
hex2d30195b9

12130031033 has 4 divisors (see below), whose sum is σ = 12176153088. Its totient is φ = 12083908980.

The previous prime is 12130031021. The next prime is 12130031047. The reversal of 12130031033 is 33013003121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33013003121 = 74716143303.

It is a cyclic number.

It is not a de Polignac number, because 12130031033 - 220 = 12128982457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12130031003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23060633 + ... + 23061158.

It is an arithmetic number, because the mean of its divisors is an integer number (3044038272).

Almost surely, 212130031033 is an apocalyptic number.

It is an amenable number.

12130031033 is a deficient number, since it is larger than the sum of its proper divisors (46122055).

12130031033 is an equidigital number, since it uses as much as digits as its factorization.

12130031033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46122054.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 12130031033 its reverse (33013003121), we get a palindrome (45143034154).

The spelling of 12130031033 in words is "twelve billion, one hundred thirty million, thirty-one thousand, thirty-three".

Divisors: 1 263 46121791 12130031033