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12312032073 = 3113071215283
BaseRepresentation
bin10110111011101101…
…01011001101001001
31011210001021000212220
423131312223031021
5200203340011243
65353413324253
7614050355145
oct133566531511
934701230786
1012312032073
115248903a20
122477336689
1312129b60a3
1484b244225
154c0d59783
hex2dddab349

12312032073 has 16 divisors (see below), whose sum is σ = 17966758656. Its totient is φ = 7437525840.

The previous prime is 12312032059. The next prime is 12312032123. The reversal of 12312032073 is 37023021321.

It is not a de Polignac number, because 12312032073 - 213 = 12312023881 is a prime.

It is a super-2 number, since 2×123120320732 (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12312033073) 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, 597511 + ... + 617772.

It is an arithmetic number, because the mean of its divisors is an integer number (1122922416).

Almost surely, 212312032073 is an apocalyptic number.

It is an amenable number.

12312032073 is a deficient number, since it is larger than the sum of its proper divisors (5654726583).

12312032073 is a wasteful number, since it uses less digits than its factorization.

12312032073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1215604.

The product of its (nonzero) digits is 1512, while the sum is 24.

Adding to 12312032073 its reverse (37023021321), we get a palindrome (49335053394).

The spelling of 12312032073 in words is "twelve billion, three hundred twelve million, thirty-two thousand, seventy-three".

Divisors: 1 3 11 33 307 921 3377 10131 1215283 3645849 13368113 40104339 373091881 1119275643 4104010691 12312032073