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12120113030 = 252395071177
BaseRepresentation
bin10110100100110101…
…00011111110000110
31011021200010112110012
423102122203332012
5144310222104110
65322400030222
7606230155334
oct132232437606
934250115405
1012120113030
11515a540343
122423002372
1311b1ccb01c
1482d966b54
154ae099905
hex2d26a3f86

12120113030 has 16 divisors (see below), whose sum is σ = 21907488960. Its totient is φ = 4827759552.

The previous prime is 12120113029. The next prime is 12120113039. The reversal of 12120113030 is 3031102121.

It is a junction number, because it is equal to n+sod(n) for n = 12120112996 and 12120113014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120113039) 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, 2533199 + ... + 2537978.

It is an arithmetic number, because the mean of its divisors is an integer number (1369218060).

Almost surely, 212120113030 is an apocalyptic number.

12120113030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12120113030 is a deficient number, since it is larger than the sum of its proper divisors (9787375930).

12120113030 is a wasteful number, since it uses less digits than its factorization.

12120113030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5071423.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12120113030 its reverse (3031102121), we get a palindrome (15151215151).

The spelling of 12120113030 in words is "twelve billion, one hundred twenty million, one hundred thirteen thousand, thirty".

Divisors: 1 2 5 10 239 478 1195 2390 5071177 10142354 25355885 50711770 1212011303 2424022606 6060056515 12120113030