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2303331313231 = 131972250139971
BaseRepresentation
bin100001100001001001001…
…111101010011001001111
322011012022010020010100201
4201201021033222121033
5300214210304010411
64522045155434331
7325260461061034
oct41411117523117
98135263203321
102303331313231
1180892352a013
12312498bb59a7
131392845b9c30
147d6a61dd38b
153edacd773c1
hex218493ea64f

2303331313231 has 16 divisors (see below), whose sum is σ = 2493275244768. Its totient is φ = 2115212400000.

The previous prime is 2303331313201. The next prime is 2303331313243. The reversal of 2303331313231 is 1323131333032.

It is a cyclic number.

It is not a de Polignac number, because 2303331313231 - 225 = 2303297758799 is a prime.

It is a super-2 number, since 2×23033313132312 (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2303331313231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2303331313201) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57605076 + ... + 57645046.

It is an arithmetic number, because the mean of its divisors is an integer number (155829702798).

Almost surely, 22303331313231 is an apocalyptic number.

2303331313231 is a deficient number, since it is larger than the sum of its proper divisors (189943931537).

2303331313231 is a wasteful number, since it uses less digits than its factorization.

2303331313231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62682.

The product of its (nonzero) digits is 8748, while the sum is 28.

Adding to 2303331313231 its reverse (1323131333032), we get a palindrome (3626462646263).

The spelling of 2303331313231 in words is "two trillion, three hundred three billion, three hundred thirty-one million, three hundred thirteen thousand, two hundred thirty-one".

Divisors: 1 13 197 2561 22501 39971 292513 519623 4432697 7874287 57625061 102365731 899387471 11692037123 177179331787 2303331313231