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12013013023 = 1110110812793
BaseRepresentation
bin10110011000000100…
…00000100000011111
31011000012121021212021
423030002000200133
5144100312404043
65304012321011
7603456632404
oct131402004037
934005537767
1012013013023
11510503a540
1223b3173167
131195a6c93b
1481d6482ab
154a49913ed
hex2cc08081f

12013013023 has 8 divisors (see below), whose sum is σ = 13234859856. Its totient is φ = 10812792000.

The previous prime is 12013013009. The next prime is 12013013107. The reversal of 12013013023 is 32031031021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12013013023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12013012988 and 12013013006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12013013003) 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, 5405286 + ... + 5407507.

It is an arithmetic number, because the mean of its divisors is an integer number (1654357482).

Almost surely, 212013013023 is an apocalyptic number.

12013013023 is a deficient number, since it is larger than the sum of its proper divisors (1221846833).

12013013023 is a wasteful number, since it uses less digits than its factorization.

12013013023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10812905.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12013013023 its reverse (32031031021), we get a palindrome (44044044044).

The spelling of 12013013023 in words is "twelve billion, thirteen million, thirteen thousand, twenty-three".

Divisors: 1 11 101 1111 10812793 118940723 1092092093 12013013023