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102012230123 = 1727721663247
BaseRepresentation
bin101111100000001100…
…1110001100111101011
3100202022102000020001022
41133000121301213223
53132410112330443
6114510324043055
710240646435426
oct1370031614753
9322272006038
10102012230123
113a299276401
121792b83348b
13980967975b
144d1a3c09bd
1529c0c15e68
hex17c06719eb

102012230123 has 8 divisors (see below), whose sum is σ = 108402892992. Its totient is φ = 95664894336.

The previous prime is 102012230081. The next prime is 102012230141. The reversal of 102012230123 is 321032210201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102012230123 - 222 = 102008035819 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102012230143) 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, 10826915 + ... + 10836332.

It is an arithmetic number, because the mean of its divisors is an integer number (13550361624).

Almost surely, 2102012230123 is an apocalyptic number.

102012230123 is a deficient number, since it is larger than the sum of its proper divisors (6390662869).

102012230123 is a wasteful number, since it uses less digits than its factorization.

102012230123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21663541.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102012230123 its reverse (321032210201), we get a palindrome (423044440324).

The spelling of 102012230123 in words is "one hundred two billion, twelve million, two hundred thirty thousand, one hundred twenty-three".

Divisors: 1 17 277 4709 21663247 368275199 6000719419 102012230123