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12023031023 = 1737912791459
BaseRepresentation
bin10110011001010000…
…01110010011101111
31011000220110020222022
423030220032103233
5144110343443043
65305011140355
7603641035403
oct131450162357
934026406868
1012023031023
11510a762183
1223b65a46bb
131197b69753
14820ad5103
154a57be868
hex2cca0e4ef

12023031023 has 16 divisors (see below), whose sum is σ = 12782592000. Its totient is φ = 11269383552.

The previous prime is 12023030993. The next prime is 12023031043. The reversal of 12023031023 is 32013032021.

It is a cyclic number.

It is not a de Polignac number, because 12023031023 - 210 = 12023029999 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12023030992 and 12023031010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12023031043) 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, 8239868 + ... + 8241326.

It is an arithmetic number, because the mean of its divisors is an integer number (798912000).

Almost surely, 212023031023 is an apocalyptic number.

12023031023 is a deficient number, since it is larger than the sum of its proper divisors (759560977).

12023031023 is a wasteful number, since it uses less digits than its factorization.

12023031023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3134.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 12023031023 its reverse (32013032021), we get a palindrome (44036063044).

The spelling of 12023031023 in words is "twelve billion, twenty-three million, thirty-one thousand, twenty-three".

Divisors: 1 17 379 1279 1459 6443 21743 24803 484741 552961 1866061 8240597 9400337 31723037 707237119 12023031023