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1310012200020 = 223521833536667
BaseRepresentation
bin10011000100000010110…
…011111101010001010100
311122020101000001220122010
4103010002303331101110
5132430401110400040
62441451123504220
7163434215655036
oct23040263752124
94566330056563
101310012200020
1146563380a267
12191a80528070
13966c2496954
14475951a5c56
1524122de2e80
hex13102cfd454

1310012200020 has 24 divisors (see below), whose sum is σ = 3668034160224. Its totient is φ = 349336586656.

The previous prime is 1310012199997. The next prime is 1310012200087. The reversal of 1310012200020 is 200022100131.

It is a super-2 number, since 2×13100122000202 (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1310012199969 and 1310012200005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10916768274 + ... + 10916768393.

It is an arithmetic number, because the mean of its divisors is an integer number (152834756676).

Almost surely, 21310012200020 is an apocalyptic number.

1310012200020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310012200020 is an abundant number, since it is smaller than the sum of its proper divisors (2358021960204).

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

1310012200020 is a wasteful number, since it uses less digits than its factorization.

1310012200020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21833536679 (or 21833536677 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

Adding to 1310012200020 its reverse (200022100131), we get a palindrome (1510034300151).

The spelling of 1310012200020 in words is "one trillion, three hundred ten billion, twelve million, two hundred thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 21833536667 43667073334 65500610001 87334146668 109167683335 131001220002 218335366670 262002440004 327503050005 436670733340 655006100010 1310012200020