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312113231233 = 1812337173783
BaseRepresentation
bin1001000101010110110…
…01011111010110000001
31002211121201002221010221
410202223121133112001
520103201441344413
6355214405423041
731356312456316
oct4425331372601
91084551087127
10312113231233
11110403867201
12505a610aa81
132358058a45b
141116bbd6d0d
1581bad4968d
hex48ab65f581

312113231233 has 8 divisors (see below), whose sum is σ = 313855295936. Its totient is φ = 310371361200.

The previous prime is 312113231179. The next prime is 312113231237. The reversal of 312113231233 is 332132311213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 312113231233 - 217 = 312113100161 is a prime.

It is a super-2 number, since 2×3121132312332 (a number of 24 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 = 312113231198 and 312113231207.

It is not an unprimeable number, because it can be changed into a prime (312113231237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4193260 + ... + 4267042.

It is an arithmetic number, because the mean of its divisors is an integer number (39231911992).

Almost surely, 2312113231233 is an apocalyptic number.

It is an amenable number.

312113231233 is a deficient number, since it is larger than the sum of its proper divisors (1742064703).

312113231233 is a wasteful number, since it uses less digits than its factorization.

312113231233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97335.

The product of its digits is 1944, while the sum is 25.

Adding to 312113231233 its reverse (332132311213), we get a palindrome (644245542446).

The spelling of 312113231233 in words is "three hundred twelve billion, one hundred thirteen million, two hundred thirty-one thousand, two hundred thirty-three".

Divisors: 1 181 23371 73783 4230151 13354723 1724382493 312113231233