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12151331051 = 312811394941
BaseRepresentation
bin10110101000100011…
…01001100011101011
31011100211212120112012
423110101221203223
5144341220043201
65325433110135
7610056416066
oct132421514353
934324776465
1012151331051
115176122962
12243155834b
1311b860b522
14833b718dd
154b1bb45bb
hex2d44698eb

12151331051 has 8 divisors (see below), whose sum is σ = 12587956608. Its totient is φ = 11717496000.

The previous prime is 12151331047. The next prime is 12151331063. The reversal of 12151331051 is 15013315121.

12151331051 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 12151331051 - 22 = 12151331047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12151331011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 688760 + ... + 706181.

It is an arithmetic number, because the mean of its divisors is an integer number (1573494576).

Almost surely, 212151331051 is an apocalyptic number.

12151331051 is a deficient number, since it is larger than the sum of its proper divisors (436625557).

12151331051 is a wasteful number, since it uses less digits than its factorization.

12151331051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1395253.

The product of its (nonzero) digits is 450, while the sum is 23.

Adding to 12151331051 its reverse (15013315121), we get a palindrome (27164646172).

The spelling of 12151331051 in words is "twelve billion, one hundred fifty-one million, three hundred thirty-one thousand, fifty-one".

Divisors: 1 31 281 8711 1394941 43243171 391978421 12151331051