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313130101223 = 1718419417719
BaseRepresentation
bin1001000111010000000…
…00100010100111100111
31002221020120112021112102
410203220000202213213
520112242301214343
6355503332442315
731423440642002
oct4435000424747
91087216467472
10313130101223
11110885862725
125082a77939b
13236b3153184
1411226c96539
15822a25e3b8
hex48e80229e7

313130101223 has 4 divisors (see below), whose sum is σ = 331549518960. Its totient is φ = 294710683488.

The previous prime is 313130101187. The next prime is 313130101237. The reversal of 313130101223 is 322101031313.

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 313130101223 - 218 = 313129839079 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313130101195 and 313130101204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313130101243) 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, 9209708843 + ... + 9209708876.

It is an arithmetic number, because the mean of its divisors is an integer number (82887379740).

Almost surely, 2313130101223 is an apocalyptic number.

313130101223 is a deficient number, since it is larger than the sum of its proper divisors (18419417737).

313130101223 is a wasteful number, since it uses less digits than its factorization.

313130101223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18419417736.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 313130101223 its reverse (322101031313), we get a palindrome (635231132536).

The spelling of 313130101223 in words is "three hundred thirteen billion, one hundred thirty million, one hundred one thousand, two hundred twenty-three".

Divisors: 1 17 18419417719 313130101223