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102313312311 = 3721031231661
BaseRepresentation
bin101111101001001011…
…0010100000000110111
3100210002101112210011110
41133102112110000313
53134014201443221
6115000241210103
710251263543160
oct1372226240067
9323071483143
10102313312311
113a433219961
12179b4630933
139856b65cb2
144d48396767
1529dc38a776
hex17d2594037

102313312311 has 16 divisors (see below), whose sum is σ = 155914085888. Its totient is φ = 58461717600.

The previous prime is 102313312307. The next prime is 102313312327. The reversal of 102313312311 is 113213313201.

It is a happy number.

It is not a de Polignac number, because 102313312311 - 22 = 102313312307 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102313311311) 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, 325821 + ... + 557481.

It is an arithmetic number, because the mean of its divisors is an integer number (9744630368).

Almost surely, 2102313312311 is an apocalyptic number.

102313312311 is a deficient number, since it is larger than the sum of its proper divisors (53600773577).

102313312311 is a wasteful number, since it uses less digits than its factorization.

102313312311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 252702.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 102313312311 its reverse (113213313201), we get a palindrome (215526625512).

The spelling of 102313312311 in words is "one hundred two billion, three hundred thirteen million, three hundred twelve thousand, three hundred eleven".

Divisors: 1 3 7 21 21031 63093 147217 231661 441651 694983 1621627 4864881 4872062491 14616187473 34104437437 102313312311