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12312232213111 = 472391371095449
BaseRepresentation
bin1011001100101010101000…
…1110100011101001110111
31121121001000122001221101121
42303022222032203221313
53103210422421304421
642104054510004411
72410346410022635
oct263125216435167
947531018057347
1012312232213111
113a17652117936
12146a2397a6707
136b40668086cc
14307cb5508355
1516540941dd41
hexb32aa3a3a77

12312232213111 has 8 divisors (see below), whose sum is σ = 12574258660800. Its totient is φ = 12050208434688.

The previous prime is 12312232213109. The next prime is 12312232213147. The reversal of 12312232213111 is 11131223221321.

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

It is not a de Polignac number, because 12312232213111 - 21 = 12312232213109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12312232243111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10691715 + ... + 11787163.

It is an arithmetic number, because the mean of its divisors is an integer number (1571782332600).

Almost surely, 212312232213111 is an apocalyptic number.

12312232213111 is a deficient number, since it is larger than the sum of its proper divisors (262026447689).

12312232213111 is a wasteful number, since it uses less digits than its factorization.

12312232213111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1334633.

The product of its digits is 864, while the sum is 25.

Adding to 12312232213111 its reverse (11131223221321), we get a palindrome (23443455434432).

The spelling of 12312232213111 in words is "twelve trillion, three hundred twelve billion, two hundred thirty-two million, two hundred thirteen thousand, one hundred eleven".

Divisors: 1 47 239137 1095449 11239439 51486103 261962387513 12312232213111