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312311423003423 = 1631916021000021
BaseRepresentation
bin100011100000010111010101…
…1011011010110101100011111
31111221210200101001100102020112
41013000232223123112230133
5311413402243242102143
63024121515334040235
7122532520130401064
oct10700565333265437
91457720331312215
10312311423003423
119056a592386118
122b0400677a907b
1310535ac138470c
145719d4c698c6b
152618e0bbd6e18
hex11c0bab6d6b1f

312311423003423 has 4 divisors (see below), whose sum is σ = 314227444003608. Its totient is φ = 310395402003240.

The previous prime is 312311423003389. The next prime is 312311423003453. The reversal of 312311423003423 is 324300324113213.

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 312311423003423 - 246 = 241942678825759 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 312311423003423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312311423003453) 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, 958010499848 + ... + 958010500173.

It is an arithmetic number, because the mean of its divisors is an integer number (78556861000902).

Almost surely, 2312311423003423 is an apocalyptic number.

312311423003423 is a deficient number, since it is larger than the sum of its proper divisors (1916021000185).

312311423003423 is a wasteful number, since it uses less digits than its factorization.

312311423003423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1916021000184.

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 312311423003423 its reverse (324300324113213), we get a palindrome (636611747116636).

The spelling of 312311423003423 in words is "three hundred twelve trillion, three hundred eleven billion, four hundred twenty-three million, three thousand, four hundred twenty-three".

Divisors: 1 163 1916021000021 312311423003423