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1312103021110 = 25741457178753
BaseRepresentation
bin10011000101111111011…
…011110011101000110110
311122102202201022121222021
4103011333123303220312
5132444141333133420
62442434413223354
7163540064442250
oct23057733635066
94572681277867
101312103021110
11466506a49082
12192364791b5a
13969666bc8ab
1447712b42cd0
15241e67457aa
hex1317f6f3a36

1312103021110 has 32 divisors (see below), whose sum is σ = 2765017104192. Its totient is φ = 438891601920.

The previous prime is 1312103021107. The next prime is 1312103021137. The reversal of 1312103021110 is 111203012131.

It is a happy number.

It is a super-2 number, since 2×13121030211102 (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 228586507 + ... + 228592246.

It is an arithmetic number, because the mean of its divisors is an integer number (86406784506).

Almost surely, 21312103021110 is an apocalyptic number.

1312103021110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1312103021110 is an abundant number, since it is smaller than the sum of its proper divisors (1452914083082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312103021110 is a wasteful number, since it uses less digits than its factorization.

1312103021110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457178808.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 1312103021110 its reverse (111203012131), we get a palindrome (1423306033241).

The spelling of 1312103021110 in words is "one trillion, three hundred twelve billion, one hundred three million, twenty-one thousand, one hundred ten".

Divisors: 1 2 5 7 10 14 35 41 70 82 205 287 410 574 1435 2870 457178753 914357506 2285893765 3200251271 4571787530 6400502542 16001256355 18744328873 32002512710 37488657746 93721644365 131210302111 187443288730 262420604222 656051510555 1312103021110