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12312310200000 = 2635520520517
BaseRepresentation
bin1011001100101010111011…
…1000000011011011000000
31121121001020001211002021220
42303022232320003123000
53103211102402400000
642104110333315040
72410351344632646
oct263125670033300
947531201732256
1012312310200000
113a17692143608
12146a25b935a80
136b4079a126b5
14307cc1a09196
151654111c61a0
hexb32aee036c0

12312310200000 has 168 divisors, whose sum is σ = 40717796800464. Its totient is φ = 3283282560000.

The previous prime is 12312310199993. The next prime is 12312310200031. The reversal of 12312310200000 is 201321321.

It is a super-2 number, since 2×123123102000002 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 9660259 + ... + 10860258.

It is an arithmetic number, because the mean of its divisors is an integer number (242367838098).

Almost surely, 212312310200000 is an apocalyptic number.

12312310200000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12312310200000 is an abundant number, since it is smaller than the sum of its proper divisors (28405486600464).

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

12312310200000 is an frugal number, since it uses more digits than its factorization.

12312310200000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20520557 (or 20520527 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12312310200000 its reverse (201321321), we get a palindrome (12312511521321).

The spelling of 12312310200000 in words is "twelve trillion, three hundred twelve billion, three hundred ten million, two hundred thousand".