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212323022001031 = 648331327491701
BaseRepresentation
bin110000010001101101001110…
…010011011101001110000111
31000211202212211110121000102211
4300101231032103131032013
5210312200022113013111
62031323503314044251
762502555263124214
oct6021551623351607
91024685743530384
10212323022001031
116171a762740587
121b99175a579687
139161c8a2a0686
143a606bc11cb0b
151983020877521
hexc11b4e4dd387

212323022001031 has 4 divisors (see below), whose sum is σ = 212323350141064. Its totient is φ = 212322693861000.

The previous prime is 212323022000893. The next prime is 212323022001037. The reversal of 212323022001031 is 130100220323212.

212323022001031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 212323022001031 - 221 = 212323019903879 is a prime.

It is a super-2 number, since 2×2123230220010312 (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212323022000993 and 212323022001011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212323022001037) 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, 163097520 + ... + 164394181.

It is an arithmetic number, because the mean of its divisors is an integer number (53080837535266).

Almost surely, 2212323022001031 is an apocalyptic number.

212323022001031 is a deficient number, since it is larger than the sum of its proper divisors (328140033).

212323022001031 is an equidigital number, since it uses as much as digits as its factorization.

212323022001031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 328140032.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212323022001031 its reverse (130100220323212), we get a palindrome (342423242324243).

The spelling of 212323022001031 in words is "two hundred twelve trillion, three hundred twenty-three billion, twenty-two million, one thousand, thirty-one".

Divisors: 1 648331 327491701 212323022001031