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12212323023 = 3291279109751
BaseRepresentation
bin10110101111110100…
…10100001011001111
31011112002122021210010
423113322110023033
5200002323314043
65335452244303
7611430014205
oct132772241317
934462567703
1012212323023
1151a75a104a
122449a70693
1311c8144b54
1483bccb075
154b7211133
hex2d7e942cf

12212323023 has 16 divisors (see below), whose sum is σ = 16857907200. Its totient is φ = 7854588000.

The previous prime is 12212323007. The next prime is 12212323027. The reversal of 12212323023 is 32032321221.

It is a happy number.

It is not a de Polignac number, because 12212323023 - 24 = 12212323007 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12212323027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56398 + ... + 166148.

It is an arithmetic number, because the mean of its divisors is an integer number (1053619200).

Almost surely, 212212323023 is an apocalyptic number.

12212323023 is a deficient number, since it is larger than the sum of its proper divisors (4645584177).

12212323023 is a wasteful number, since it uses less digits than its factorization.

12212323023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111062.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12212323023 its reverse (32032321221), we get a palindrome (44244644244).

The spelling of 12212323023 in words is "twelve billion, two hundred twelve million, three hundred twenty-three thousand, twenty-three".

Divisors: 1 3 29 87 1279 3837 37091 109751 111273 329253 3182779 9548337 140371529 421114587 4070774341 12212323023