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12002313021031 = 22875248059913
BaseRepresentation
bin1010111010101000000110…
…0110101010011001100111
31120111102001211102202011001
42232222001212222121213
53033121214113133111
641305441514054131
72346065335245034
oct256520146523147
946442054382131
1012002313021031
113908174889833
12141a16641a347
13690a75973698
142d6cb4c7a38b
1515c31b0151c1
hexaea819aa667

12002313021031 has 4 divisors (see below), whose sum is σ = 12007561083232. Its totient is φ = 11997064958832.

The previous prime is 12002313021029. The next prime is 12002313021037. The reversal of 12002313021031 is 13012031320021.

12002313021031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12002313021031 - 21 = 12002313021029 is a prime.

It is a super-2 number, since 2×120023130210312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002313021037) 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, 2624027670 + ... + 2624032243.

It is an arithmetic number, because the mean of its divisors is an integer number (3001890270808).

Almost surely, 212002313021031 is an apocalyptic number.

12002313021031 is a deficient number, since it is larger than the sum of its proper divisors (5248062201).

12002313021031 is an equidigital number, since it uses as much as digits as its factorization.

12002313021031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5248062200.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12002313021031 its reverse (13012031320021), we get a palindrome (25014344341052).

The spelling of 12002313021031 in words is "twelve trillion, two billion, three hundred thirteen million, twenty-one thousand, thirty-one".

Divisors: 1 2287 5248059913 12002313021031