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12032032031 = 12911931921
BaseRepresentation
bin10110011010010101…
…00011110100011111
31011001112101120000222
423031022203310133
5144120200011111
65305532111555
7604110404405
oct131512436437
934045346028
1012032032031
11511484a828
1223b96055bb
13119999b6a6
14821d99475
154a649b7db
hex2cd2a3d1f

12032032031 has 4 divisors (see below), whose sum is σ = 12032976864. Its totient is φ = 12031087200.

The previous prime is 12032032027. The next prime is 12032032039. The reversal of 12032032031 is 13023023021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13023023021 = 119310916197.

It is a cyclic number.

It is not a de Polignac number, because 12032032031 - 22 = 12032032027 is a prime.

It is a super-2 number, since 2×120320320312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032032039) 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, 453050 + ... + 478871.

It is an arithmetic number, because the mean of its divisors is an integer number (3008244216).

Almost surely, 212032032031 is an apocalyptic number.

12032032031 is a deficient number, since it is larger than the sum of its proper divisors (944833).

12032032031 is an equidigital number, since it uses as much as digits as its factorization.

12032032031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 944832.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12032032031 its reverse (13023023021), we get a palindrome (25055055052).

The spelling of 12032032031 in words is "twelve billion, thirty-two million, thirty-two thousand, thirty-one".

Divisors: 1 12911 931921 12032032031