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31203332314231 = 711405238082003
BaseRepresentation
bin1110001100001000101111…
…00010011101010001110111
311002111000020212201222020011
413012010113202131101313
513042213411033023411
6150210340222521051
76400236443322130
oct706042742352167
9132430225658204
1031203332314231
119a40293693150
1235bb4b8a36187
13145460021170c
1479c36c2a2c87
15391a0c2ebc21
hex1c611789d477

31203332314231 has 8 divisors (see below), whose sum is σ = 38902855872384. Its totient is φ = 24314284920120.

The previous prime is 31203332314201. The next prime is 31203332314249. The reversal of 31203332314231 is 13241323330213.

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

It is a cyclic number.

It is not a de Polignac number, because 31203332314231 - 223 = 31203323925623 is a prime.

It is a super-2 number, since 2×312033323142312 (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31203332314193 and 31203332314202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31203332314201) 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 7 ways as a sum of consecutive naturals, for example, 202619040925 + ... + 202619041078.

It is an arithmetic number, because the mean of its divisors is an integer number (4862856984048).

Almost surely, 231203332314231 is an apocalyptic number.

31203332314231 is a deficient number, since it is larger than the sum of its proper divisors (7699523558153).

31203332314231 is a wasteful number, since it uses less digits than its factorization.

31203332314231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 405238082021.

The product of its (nonzero) digits is 23328, while the sum is 31.

Adding to 31203332314231 its reverse (13241323330213), we get a palindrome (44444655644444).

The spelling of 31203332314231 in words is "thirty-one trillion, two hundred three billion, three hundred thirty-two million, three hundred fourteen thousand, two hundred thirty-one".

Divisors: 1 7 11 77 405238082003 2836666574021 4457618902033 31203332314231