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23313221031 = 317457121981
BaseRepresentation
bin10101101101100100…
…111000010110100111
32020011201221100001210
4111231210320112213
5340221141033111
614413203122503
71453503052302
oct255544702647
966151840053
1023313221031
119983784021
124627673433
132276c38959
1411b2343b39
15916a810a6
hex56d9385a7

23313221031 has 8 divisors (see below), whose sum is σ = 32912782704. Its totient is φ = 14627903360.

The previous prime is 23313220999. The next prime is 23313221039. The reversal of 23313221031 is 13012231332.

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 23313221031 - 25 = 23313220999 is a prime.

It is a super-2 number, since 2×233132210312 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23313220989 and 23313221007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23313221039) 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, 228560940 + ... + 228561041.

It is an arithmetic number, because the mean of its divisors is an integer number (4114097838).

Almost surely, 223313221031 is an apocalyptic number.

23313221031 is a deficient number, since it is larger than the sum of its proper divisors (9599561673).

23313221031 is a wasteful number, since it uses less digits than its factorization.

23313221031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457122001.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 23313221031 its reverse (13012231332), we get a palindrome (36325452363).

The spelling of 23313221031 in words is "twenty-three billion, three hundred thirteen million, two hundred twenty-one thousand, thirty-one".

Divisors: 1 3 17 51 457121981 1371365943 7771073677 23313221031