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12311331122 = 231911929071
BaseRepresentation
bin10110111011101000…
…00000000100110010
31011202222221102100202
423131310000010302
5200203200043442
65353350315202
7614041405436
oct133564000462
934688842322
1012311331122
115248475322
122477058b02
1312127cc01c
1484b1009c6
154c0c6bc32
hex2ddd00132

12311331122 has 8 divisors (see below), whose sum is σ = 18472793472. Its totient is φ = 6153733300.

The previous prime is 12311331101. The next prime is 12311331139. The reversal of 12311331122 is 22113311321.

It is a happy number.

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

It is a junction number, because it is equal to n+sod(n) for n = 12311331094 and 12311331103.

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, 958154 + ... + 970917.

It is an arithmetic number, because the mean of its divisors is an integer number (2309099184).

Almost surely, 212311331122 is an apocalyptic number.

12311331122 is a deficient number, since it is larger than the sum of its proper divisors (6161462350).

12311331122 is a wasteful number, since it uses less digits than its factorization.

12311331122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1932264.

The product of its digits is 216, while the sum is 20.

Adding to 12311331122 its reverse (22113311321), we get a palindrome (34424642443).

The spelling of 12311331122 in words is "twelve billion, three hundred eleven million, three hundred thirty-one thousand, one hundred twenty-two".

Divisors: 1 2 3191 6382 1929071 3858142 6155665561 12311331122