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12002023013 = 22353820731
BaseRepresentation
bin10110010110110000…
…00101011001100101
31010222102220221101212
423023120011121211
5144040004214023
65302541001205
7603264340511
oct131330053145
933872827355
1012002023013
1150a9913592
1223ab553205
1311936c2586
1481bdc7141
154a3a1ee78
hex2cb605665

12002023013 has 4 divisors (see below), whose sum is σ = 12055843968. Its totient is φ = 11948202060.

The previous prime is 12002022997. The next prime is 12002023057. The reversal of 12002023013 is 31032020021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 31032020021 = 92833342887.

It is a cyclic number.

It is not a de Polignac number, because 12002023013 - 24 = 12002022997 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 (12002020013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26910143 + ... + 26910588.

It is an arithmetic number, because the mean of its divisors is an integer number (3013960992).

Almost surely, 212002023013 is an apocalyptic number.

It is an amenable number.

12002023013 is a deficient number, since it is larger than the sum of its proper divisors (53820955).

12002023013 is an equidigital number, since it uses as much as digits as its factorization.

12002023013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53820954.

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

Adding to 12002023013 its reverse (31032020021), we get a palindrome (43034043034).

The spelling of 12002023013 in words is "twelve billion, two million, twenty-three thousand, thirteen".

Divisors: 1 223 53820731 12002023013