Search a number
-
+
12010331131 = 47592523709
BaseRepresentation
bin10110010111101111…
…10001101111111011
31011000000120000222221
423023313301233323
5144044121044011
65303435024511
7603425062441
oct131367615773
934000500887
1012010331131
1151035785a7
1223b229b137
131195341016
1481d14ab91
154a4611971
hex2cbdf1bfb

12010331131 has 4 divisors (see below), whose sum is σ = 12012859600. Its totient is φ = 12007802664.

The previous prime is 12010331093. The next prime is 12010331141. The reversal of 12010331131 is 13113301021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12010331131 is a prime.

It is a super-2 number, since 2×120103311312 (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 (12010331141) 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, 1257096 + ... + 1266613.

It is an arithmetic number, because the mean of its divisors is an integer number (3003214900).

Almost surely, 212010331131 is an apocalyptic number.

12010331131 is a deficient number, since it is larger than the sum of its proper divisors (2528469).

12010331131 is an equidigital number, since it uses as much as digits as its factorization.

12010331131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2528468.

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

Adding to 12010331131 its reverse (13113301021), we get a palindrome (25123632152).

The spelling of 12010331131 in words is "twelve billion, ten million, three hundred thirty-one thousand, one hundred thirty-one".

Divisors: 1 4759 2523709 12010331131