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12013020023 = 83269538049
BaseRepresentation
bin10110011000000100…
…00010001101110111
31011000012121122110112
423030002002031313
5144100313120043
65304012413235
7603456661664
oct131402021567
934005548415
1012013020023
115105044824
1223b317721b
131195a72b94
1481d64aa6b
154a4993518
hex2cc082377

12013020023 has 8 divisors (see below), whose sum is σ = 12202974000. Its totient is φ = 11824142848.

The previous prime is 12013020013. The next prime is 12013020073. The reversal of 12013020023 is 32002031021.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 12013020023 - 218 = 12012757879 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 (12013020013) 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, 246698 + ... + 291351.

It is an arithmetic number, because the mean of its divisors is an integer number (1525371750).

Almost surely, 212013020023 is an apocalyptic number.

12013020023 is a deficient number, since it is larger than the sum of its proper divisors (189953977).

12013020023 is an equidigital number, since it uses as much as digits as its factorization.

12013020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 538401.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12013020023 its reverse (32002031021), we get a palindrome (44015051044).

The spelling of 12013020023 in words is "twelve billion, thirteen million, twenty thousand, twenty-three".

Divisors: 1 83 269 22327 538049 44658067 144735181 12013020023