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31310132102111 = 297349159950287
BaseRepresentation
bin1110001111001111101010…
…10011010100001111011111
311002212012220221101022212102
413013213311103110033133
513100441122304231421
6150331402012555315
76411040155460112
oct707476523241737
9132765827338772
1031310132102111
119a81609355555
123618143a82b3b
1314616c06c7385
147a35c0444579
153946ad4a360b
hex1c79f54d43df

31310132102111 has 32 divisors (see below), whose sum is σ = 32955939072000. Its totient is φ = 29705364299520.

The previous prime is 31310132102101. The next prime is 31310132102233. The reversal of 31310132102111 is 11120123101313.

It is not a de Polignac number, because 31310132102111 - 242 = 26912085591007 is a prime.

It is a super-3 number, since 3×313101321021113 (a number of 41 digits) contains 333 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 (31310132102101) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 622603610 + ... + 622653896.

It is an arithmetic number, because the mean of its divisors is an integer number (1029873096000).

Almost surely, 231310132102111 is an apocalyptic number.

31310132102111 is a deficient number, since it is larger than the sum of its proper divisors (1645806969889).

31310132102111 is a wasteful number, since it uses less digits than its factorization.

31310132102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51479.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31310132102111 its reverse (11120123101313), we get a palindrome (42430255203424).

The spelling of 31310132102111 in words is "thirty-one trillion, three hundred ten billion, one hundred thirty-two million, one hundred two thousand, one hundred eleven".

Divisors: 1 29 73 491 599 2117 14239 17371 35843 43727 50287 294109 1039447 1268083 1458323 3670951 8529161 21469957 24690917 30121913 106457579 622628753 716036593 873535477 1802436941 2198899649 14789859283 52270671289 63768089821 428905919207 1079659727659 31310132102111