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123012032310101 = 11229257171898887
BaseRepresentation
bin11011111110000011111000…
…011111010010101101010101
3121010112211120000221222212102
4123332003320133102231111
5112110412120232410401
61113342540354331445
734624216556324444
oct3376037037225525
9533484500858772
10123012032310101
113621712335a620
1211968680889b85
135383ca59c499c
142253b57d94d5b
15e34c5a39d56b
hex6fe0f87d2b55

123012032310101 has 16 divisors (see below), whose sum is σ = 134786260371840. Its totient is φ = 111336395417280.

The previous prime is 123012032310077. The next prime is 123012032310109. The reversal of 123012032310101 is 101013230210321.

It is a happy number.

It is not a de Polignac number, because 123012032310101 - 210 = 123012032309077 is a prime.

It is a super-2 number, since 2×1230120323101012 (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123012032310109) 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, 63831680 + ... + 65730566.

It is an arithmetic number, because the mean of its divisors is an integer number (8424141273240).

Almost surely, 2123012032310101 is an apocalyptic number.

123012032310101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

123012032310101 is a deficient number, since it is larger than the sum of its proper divisors (11774228061739).

123012032310101 is a wasteful number, since it uses less digits than its factorization.

123012032310101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924844.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123012032310101 its reverse (101013230210321), we get a palindrome (224025262520422).

The spelling of 123012032310101 in words is "one hundred twenty-three trillion, twelve billion, thirty-two million, three hundred ten thousand, one hundred one".

Divisors: 1 11 229 2519 25717 282887 1898887 5889193 20887757 64781123 434845123 4783296353 48833676979 537170446769 11182912028191 123012032310101