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12300333031 = 719428921563
BaseRepresentation
bin10110111010010100…
…00010111111100111
31011202020020122211001
423131022002333213
5200142341124111
65352314454131
7613546051150
oct133512027747
934666218731
1012300333031
115242243298
122473434347
13121044b08c
1484987a927
154bece81c1
hex2dd282fe7

12300333031 has 16 divisors (see below), whose sum is σ = 14801529600. Its totient is φ = 9985448448.

The previous prime is 12300332963. The next prime is 12300333041. The reversal of 12300333031 is 13033300321.

It is a cyclic number.

It is not a de Polignac number, because 12300333031 - 215 = 12300300263 is a prime.

It is a super-2 number, since 2×123003330312 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300333041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 559656 + ... + 581218.

It is an arithmetic number, because the mean of its divisors is an integer number (925095600).

Almost surely, 212300333031 is an apocalyptic number.

12300333031 is a deficient number, since it is larger than the sum of its proper divisors (2501196569).

12300333031 is a wasteful number, since it uses less digits than its factorization.

12300333031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25878.

The product of its (nonzero) digits is 486, while the sum is 19.

Adding to 12300333031 its reverse (13033300321), we get a palindrome (25333633352).

The spelling of 12300333031 in words is "twelve billion, three hundred million, three hundred thirty-three thousand, thirty-one".

Divisors: 1 7 19 133 4289 21563 30023 81491 150941 409697 570437 2867879 92483707 647385949 1757190433 12300333031