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12133131142 = 211551505961
BaseRepresentation
bin10110100110011000…
…01110001110000110
31011022120121220221111
423103030032032012
5144322040144032
65323543035234
7606445625116
oct132314161606
934276556844
1012133131142
115166922010
12242743bb1a
1311b4908552
14831595046
154b02bbc47
hex2d330e386

12133131142 has 8 divisors (see below), whose sum is σ = 19854214632. Its totient is φ = 5515059600.

The previous prime is 12133131113. The next prime is 12133131161. The reversal of 12133131142 is 24113133121.

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

It is a Harshad number since it is a multiple of its sum of digits (22), and also a Moran number because the ratio is a prime number: 551505961 = 12133131142 / (1 + 2 + 1 + 3 + 3 + 1 + 3 + 1 + 1 + 4 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275752959 + ... + 275753002.

It is an arithmetic number, because the mean of its divisors is an integer number (2481776829).

Almost surely, 212133131142 is an apocalyptic number.

12133131142 is a deficient number, since it is larger than the sum of its proper divisors (7721083490).

12133131142 is a wasteful number, since it uses less digits than its factorization.

12133131142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551505974.

The product of its digits is 432, while the sum is 22.

Adding to 12133131142 its reverse (24113133121), we get a palindrome (36246264263).

The spelling of 12133131142 in words is "twelve billion, one hundred thirty-three million, one hundred thirty-one thousand, one hundred forty-two".

Divisors: 1 2 11 22 551505961 1103011922 6066565571 12133131142