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1010223023213 = 1523366318061
BaseRepresentation
bin11101011001101011111…
…11000000010001101101
310120120120011211210221102
432230311333000101231
5113022414043220323
62052031241212445
7132662161005305
oct16546577002155
93516504753842
101010223023213
1135a484618608
12143955791125
13743572417c1
1436c76062605
151b428eca328
hexeb35fc046d

1010223023213 has 4 divisors (see below), whose sum is σ = 1010289356508. Its totient is φ = 1010156689920.

The previous prime is 1010223023153. The next prime is 1010223023221. The reversal of 1010223023213 is 3123203220101.

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 525825119044 + 484397904169 = 725138^2 + 695987^2 .

It is a cyclic number.

It is not a de Polignac number, because 1010223023213 - 28 = 1010223022957 is a prime.

It is a super-2 number, since 2×10102230232132 (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010223022213) 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, 33143798 + ... + 33174263.

It is an arithmetic number, because the mean of its divisors is an integer number (252572339127).

Almost surely, 21010223023213 is an apocalyptic number.

It is an amenable number.

1010223023213 is a deficient number, since it is larger than the sum of its proper divisors (66333295).

1010223023213 is an equidigital number, since it uses as much as digits as its factorization.

1010223023213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66333294.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1010223023213 its reverse (3123203220101), we get a palindrome (4133426243314).

The spelling of 1010223023213 in words is "one trillion, ten billion, two hundred twenty-three million, twenty-three thousand, two hundred thirteen".

Divisors: 1 15233 66318061 1010223023213