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123012013120001 = 731949864595213
BaseRepresentation
bin11011111110000011110111…
…010110000101101000000001
3121010112211111200212000222222
4123332003313112011220001
5112110412100324320001
61113342534431140425
734624216234240565
oct3376036726055001
9533484450760888
10123012013120001
1136217113542835
1211968676374715
135383ca1a360b5
142253b555db6a5
15e34c5885c61b
hex6fe0f7585a01

123012013120001 has 8 divisors (see below), whose sum is σ = 124761089380200. Its totient is φ = 121264666054272.

The previous prime is 123012013119929. The next prime is 123012013120049. The reversal of 123012013120001 is 100021310210321.

It can be written as a sum of positive squares in 4 ways, for example, as 62911547622400 + 60100465497601 = 7931680^2 + 7752449^2 .

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 123012013120001 - 226 = 123011946011137 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123012013120901) 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, 432155330 + ... + 432439883.

It is an arithmetic number, because the mean of its divisors is an integer number (15595136172525).

Almost surely, 2123012013120001 is an apocalyptic number.

It is an amenable number.

123012013120001 is a deficient number, since it is larger than the sum of its proper divisors (1749076260199).

123012013120001 is an equidigital number, since it uses as much as digits as its factorization.

123012013120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 864597235.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 123012013120001 its reverse (100021310210321), we get a palindrome (223033323330322).

The spelling of 123012013120001 in words is "one hundred twenty-three trillion, twelve billion, thirteen million, one hundred twenty thousand, one".

Divisors: 1 73 1949 142277 864595213 63115450549 1685096070137 123012013120001