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12203231010 = 235439459869
BaseRepresentation
bin10110101110101111…
…01000011100100010
31011111110112100212220
423113113220130202
5144443011343020
65334525331510
7611256515655
oct132727503442
934443470786
1012203231010
1151a2451093
122446a06b96
1311c62b0669
1483aa0189c
154b6517240
hex2d75e8722

12203231010 has 32 divisors (see below), whose sum is σ = 29968868160. Its totient is φ = 3178515648.

The previous prime is 12203230951. The next prime is 12203231063. The reversal of 12203231010 is 1013230221.

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 15 ways as a sum of consecutive naturals, for example, 4728645 + ... + 4731224.

It is an arithmetic number, because the mean of its divisors is an integer number (936527130).

Almost surely, 212203231010 is an apocalyptic number.

12203231010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12203231010 is an abundant number, since it is smaller than the sum of its proper divisors (17765637150).

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

12203231010 is a wasteful number, since it uses less digits than its factorization.

12203231010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9459922.

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

Adding to 12203231010 its reverse (1013230221), we get a palindrome (13216461231).

The spelling of 12203231010 in words is "twelve billion, two hundred three million, two hundred thirty-one thousand, ten".

Divisors: 1 2 3 5 6 10 15 30 43 86 129 215 258 430 645 1290 9459869 18919738 28379607 47299345 56759214 94598690 141898035 283796070 406774367 813548734 1220323101 2033871835 2440646202 4067743670 6101615505 12203231010