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123022113213 = 32317330413389
BaseRepresentation
bin111001010010010110…
…0000111100110111101
3102202112121210212110110
41302210230013212331
54003422130110323
6132303210500233
711613413465046
oct1624454074675
9382477725413
10123022113213
114819a85954a
121ba13a34679
13b7a7341b3c
145d508678cd
153300466793
hex1ca4b079bd

123022113213 has 32 divisors (see below), whose sum is σ = 172257995520. Its totient is φ = 77946767360.

The previous prime is 123022113139. The next prime is 123022113241. The reversal of 123022113213 is 312311220321.

It is a cyclic number.

It is not a de Polignac number, because 123022113213 - 28 = 123022112957 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123022113213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123022113293) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 36298723 + ... + 36302111.

It is an arithmetic number, because the mean of its divisors is an integer number (5383062360).

Almost surely, 2123022113213 is an apocalyptic number.

It is an amenable number.

123022113213 is a deficient number, since it is larger than the sum of its proper divisors (49235882307).

123022113213 is a wasteful number, since it uses less digits than its factorization.

123022113213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6629.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 123022113213 its reverse (312311220321), we get a palindrome (435333333534).

The spelling of 123022113213 in words is "one hundred twenty-three billion, twenty-two million, one hundred thirteen thousand, two hundred thirteen".

Divisors: 1 3 23 69 173 519 3041 3389 3979 9123 10167 11937 69943 77947 209829 233841 526093 586297 1578279 1758891 10305949 12100139 13484831 30917847 36300417 40454493 237036827 711110481 1782929177 5348787531 41007371071 123022113213