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23231213122 = 2138314397481
BaseRepresentation
bin10101101000101100…
…000010111001000010
32012222000121220100211
4111220230002321002
5340034142304442
614401113304334
71451456024215
oct255054027102
965860556324
1023231213122
119941461297
1246041050aa
132262c54670
1411a54b777c
1590e782617
hex568b02e42

23231213122 has 32 divisors (see below), whose sum is σ = 38010954240. Its totient is φ = 10584140160.

The previous prime is 23231213119. The next prime is 23231213123. The reversal of 23231213122 is 22131213232.

It is a junction number, because it is equal to n+sod(n) for n = 23231213093 and 23231213102.

It is not an unprimeable number, because it can be changed into a prime (23231213123) 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, 3101622 + ... + 3109102.

It is an arithmetic number, because the mean of its divisors is an integer number (1187842320).

Almost surely, 223231213122 is an apocalyptic number.

23231213122 is a deficient number, since it is larger than the sum of its proper divisors (14779741118).

23231213122 is a wasteful number, since it uses less digits than its factorization.

23231213122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9018.

The product of its digits is 864, while the sum is 22.

Adding to 23231213122 its reverse (22131213232), we get a palindrome (45362426354).

The spelling of 23231213122 in words is "twenty-three billion, two hundred thirty-one million, two hundred thirteen thousand, one hundred twenty-two".

Divisors: 1 2 13 26 83 166 1079 1439 2158 2878 7481 14962 18707 37414 97253 119437 194506 238874 620923 1241846 1552681 3105362 8071999 10765159 16143998 21530318 139947067 279894134 893508197 1787016394 11615606561 23231213122