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12310013330020 = 225787928666643
BaseRepresentation
bin1011001100100010010111…
…1110001100001001100100
31121120211021222212000000101
42303020211332030021210
53103141401403030040
642103050403353444
72410240414566010
oct263104576141144
947524258760011
1012310013330020
113a1671367015a
12146991a682884
136b3aa1bc5133
14307b44953540
1516532972209a
hexb3225f8c264

12310013330020 has 24 divisors (see below), whose sum is σ = 29544031992384. Its totient is φ = 4220575998816.

The previous prime is 12310013330003. The next prime is 12310013330023. The reversal of 12310013330020 is 2003331001321.

It is a self number, because there is not a number n which added to its sum of digits gives 12310013330020.

It is not an unprimeable number, because it can be changed into a prime (12310013330023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43964333182 + ... + 43964333461.

It is an arithmetic number, because the mean of its divisors is an integer number (1231001333016).

Almost surely, 212310013330020 is an apocalyptic number.

12310013330020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12310013330020 is an abundant number, since it is smaller than the sum of its proper divisors (17234018662364).

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

12310013330020 is a wasteful number, since it uses less digits than its factorization.

12310013330020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87928666659 (or 87928666657 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12310013330020 its reverse (2003331001321), we get a palindrome (14313344331341).

The spelling of 12310013330020 in words is "twelve trillion, three hundred ten billion, thirteen million, three hundred thirty thousand, twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 87928666643 175857333286 351714666572 439643333215 615500666501 879286666430 1231001333002 1758573332860 2462002666004 3077503332505 6155006665010 12310013330020