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310123012002101 = 1143727115765673
BaseRepresentation
bin100011010000011100010001…
…1111101111001000100110101
31111200001110200220222000022022
41012200320203331321010311
5311122023412033031401
63015324313411242525
7122215435224661124
oct10640704375710465
91450043626860268
10310123012002101
118a8a64814263a1
122a947b012a9445
1310407622771b5c
145682068d19abb
1525cc027dbc71b
hex11a0e23f79135

310123012002101 has 4 divisors (see below), whose sum is σ = 310150127779212. Its totient is φ = 310095896224992.

The previous prime is 310123012002053. The next prime is 310123012002113. The reversal of 310123012002101 is 101200210321013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 154237149600625 + 155885862401476 = 12419225^2 + 12485426^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-310123012002101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 310123012002101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (310123012002901) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13557871400 + ... + 13557894273.

It is an arithmetic number, because the mean of its divisors is an integer number (77537531944803).

Almost surely, 2310123012002101 is an apocalyptic number.

It is an amenable number.

310123012002101 is a deficient number, since it is larger than the sum of its proper divisors (27115777111).

310123012002101 is a wasteful number, since it uses less digits than its factorization.

310123012002101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27115777110.

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

Adding to 310123012002101 its reverse (101200210321013), we get a palindrome (411323222323114).

The spelling of 310123012002101 in words is "three hundred ten trillion, one hundred twenty-three billion, twelve million, two thousand, one hundred one".

Divisors: 1 11437 27115765673 310123012002101