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3102121512311 = 31100068435881
BaseRepresentation
bin101101001001000100110…
…110011100110101110111
3101222120010011220121110212
4231021010312130311313
5401311121101343221
610333032301540035
7440056314534503
oct55110466346567
911876104817425
103102121512311
11a966697a3438
1242126627461b
131966b4a20073
14aa201a03303
1555a5ed44b5b
hex2d244d9cd77

3102121512311 has 4 divisors (see below), whose sum is σ = 3202189948224. Its totient is φ = 3002053076400.

The previous prime is 3102121512247. The next prime is 3102121512337. The reversal of 3102121512311 is 1132151212013.

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 3102121512311 - 26 = 3102121512247 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 (3102121512011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 50034217910 + ... + 50034217971.

It is an arithmetic number, because the mean of its divisors is an integer number (800547487056).

Almost surely, 23102121512311 is an apocalyptic number.

3102121512311 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3102121512311 is a deficient number, since it is larger than the sum of its proper divisors (100068435913).

3102121512311 is a wasteful number, since it uses less digits than its factorization.

3102121512311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100068435912.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 3102121512311 its reverse (1132151212013), we get a palindrome (4234272724324).

The spelling of 3102121512311 in words is "three trillion, one hundred two billion, one hundred twenty-one million, five hundred twelve thousand, three hundred eleven".

Divisors: 1 31 100068435881 3102121512311