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31232103130311 = 329397904256149
BaseRepresentation
bin1110001100111110010100…
…11010011010010011000111
311002120202111222002212020220
413012133022122122103013
513043201321400132221
6150231455145155423
76402305426243316
oct706371232322307
9132522458085226
1031232103130311
119a51507aa80a6
123604ba818bb73
131457236a34945
1479d8db38227d
153926430730c6
hex1c67ca69a4c7

31232103130311 has 16 divisors (see below), whose sum is σ = 43187273724000. Its totient is φ = 20052784338048.

The previous prime is 31232103130307. The next prime is 31232103130331. The reversal of 31232103130311 is 11303130123213.

It is not a de Polignac number, because 31232103130311 - 22 = 31232103130307 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31232103130331) 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, 452093536 + ... + 452162613.

It is an arithmetic number, because the mean of its divisors is an integer number (2699204607750).

Almost surely, 231232103130311 is an apocalyptic number.

31232103130311 is a deficient number, since it is larger than the sum of its proper divisors (11955170593689).

31232103130311 is a wasteful number, since it uses less digits than its factorization.

31232103130311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904256578.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31232103130311 its reverse (11303130123213), we get a palindrome (42535233253524).

The spelling of 31232103130311 in words is "thirty-one trillion, two hundred thirty-two billion, one hundred three million, one hundred thirty thousand, three hundred eleven".

Divisors: 1 3 29 87 397 1191 11513 34539 904256149 2712768447 26223428321 78670284963 358989691153 1076969073459 10410701043437 31232103130311