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312223113001 = 2843109821707
BaseRepresentation
bin1001000101100011111…
…00101001111100101001
31002211220100212111121001
410202301330221330221
520103413104104001
6355233332515001
731362115446322
oct4426174517451
91084810774531
10312223113001
1111045a897a88
1250616a7ba61
132359a280a57
141117c63b449
1581c5802001
hex48b1f29f29

312223113001 has 4 divisors (see below), whose sum is σ = 312332937552. Its totient is φ = 312113288452.

The previous prime is 312223112987. The next prime is 312223113031. The reversal of 312223113001 is 100311322213.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100311322213 = 197509194529.

It is a cyclic number.

It is not a de Polignac number, because 312223113001 - 217 = 312222981929 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 312223113001.

It is not an unprimeable number, because it can be changed into a prime (312223113031) 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, 54908011 + ... + 54913696.

It is an arithmetic number, because the mean of its divisors is an integer number (78083234388).

Almost surely, 2312223113001 is an apocalyptic number.

It is an amenable number.

312223113001 is a deficient number, since it is larger than the sum of its proper divisors (109824551).

312223113001 is a wasteful number, since it uses less digits than its factorization.

312223113001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109824550.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 312223113001 its reverse (100311322213), we get a palindrome (412534435214).

The spelling of 312223113001 in words is "three hundred twelve billion, two hundred twenty-three million, one hundred thirteen thousand, one".

Divisors: 1 2843 109821707 312223113001