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12300220031 = 112383265417
BaseRepresentation
bin10110111010010011…
…00111011001111111
31011202020000220210212
423131021213121333
5200142324020111
65352312223035
7613545100541
oct133511473177
934666026725
1012300220031
115242176400
12247339aa7b
13121040b808
1484984b691
154becc498b
hex2dd26767f

12300220031 has 12 divisors (see below), whose sum is σ = 13555428096. Its totient is φ = 11152780320.

The previous prime is 12300220007. The next prime is 12300220033. The reversal of 12300220031 is 13002200321.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-12300220031 is a prime.

It is a super-2 number, since 2×123002200312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12300219988 and 12300220015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12300220033) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 86366 + ... + 179051.

It is an arithmetic number, because the mean of its divisors is an integer number (1129619008).

Almost surely, 212300220031 is an apocalyptic number.

12300220031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12300220031 is a deficient number, since it is larger than the sum of its proper divisors (1255208065).

12300220031 is a wasteful number, since it uses less digits than its factorization.

12300220031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 265822 (or 265811 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12300220031 its reverse (13002200321), we get a palindrome (25302420352).

It can be divided in two parts, 1 and 2300220031, that added together give a palindrome (2300220032).

The spelling of 12300220031 in words is "twelve billion, three hundred million, two hundred twenty thousand, thirty-one".

Divisors: 1 11 121 383 4213 46343 265417 2919587 32115457 101654711 1118201821 12300220031