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3103302120031 = 31100106520001
BaseRepresentation
bin101101001010001011001…
…110000111001001011111
3101222200011110102200210201
4231022023032013021133
5401321030320320111
610333345354244331
7440130501534511
oct55121316071137
911880143380721
103103302120031
11a971151644a3
124215357266a7
131968424b4909
14aa2b4725bb1
1555acd7ee6c1
hex2d28b38725f

3103302120031 has 4 divisors (see below), whose sum is σ = 3203408640064. Its totient is φ = 3003195600000.

The previous prime is 3103302120029. The next prime is 3103302120073. The reversal of 3103302120031 is 1300212033013.

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 3103302120031 - 21 = 3103302120029 is a prime.

It is a super-2 number, since 2×31033021200312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3103302119990 and 3103302120008.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3103302120011) 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, 50053259970 + ... + 50053260031.

It is an arithmetic number, because the mean of its divisors is an integer number (800852160016).

Almost surely, 23103302120031 is an apocalyptic number.

3103302120031 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

3103302120031 is a deficient number, since it is larger than the sum of its proper divisors (100106520033).

3103302120031 is a wasteful number, since it uses less digits than its factorization.

3103302120031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100106520032.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 3103302120031 its reverse (1300212033013), we get a palindrome (4403514153044).

The spelling of 3103302120031 in words is "three trillion, one hundred three billion, three hundred two million, one hundred twenty thousand, thirty-one".

Divisors: 1 31 100106520001 3103302120031