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12304001511020 = 2251920732029993
BaseRepresentation
bin1011001100001011111110…
…1000111010111001101100
31121120020210000112221201102
42303002333220322321230
53103042043341323040
642100214045302232
72406635425143632
oct263027750727154
947506700487642
1012304001511020
113a141090a75aa
121468721264978
136b335454b89b
14307734349352
151650c6a52515
hexb30bfa3ae6c

12304001511020 has 24 divisors (see below), whose sum is σ = 25839749239584. Its totient is φ = 4921344210816.

The previous prime is 12304001511013. The next prime is 12304001511047. The reversal of 12304001511020 is 2011510040321.

It is a super-3 number, since 3×123040015110203 (a number of 40 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 12304001510983 and 12304001511001.

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, 15630857 + ... + 16399136.

It is an arithmetic number, because the mean of its divisors is an integer number (1076656218316).

Almost surely, 212304001511020 is an apocalyptic number.

12304001511020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12304001511020 is an abundant number, since it is smaller than the sum of its proper divisors (13535747728564).

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

12304001511020 is a wasteful number, since it uses less digits than its factorization.

12304001511020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32049209 (or 32049207 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 12304001511020 its reverse (2011510040321), we get a palindrome (14315511551341).

The spelling of 12304001511020 in words is "twelve trillion, three hundred four billion, one million, five hundred eleven thousand, twenty".

Divisors: 1 2 4 5 10 20 19207 38414 76828 96035 192070 384140 32029993 64059986 128119972 160149965 320299930 640599860 615200075551 1230400151102 2460800302204 3076000377755 6152000755510 12304001511020