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23202113321 = 191221163859
BaseRepresentation
bin10101100110111101…
…000010011100101001
32012212222212110221102
4111212331002130221
5340004220111241
614354153451145
71450653465152
oct254675023451
965788773842
1023202113321
119926a96172
1245b6410ab5
132259c0634a
1411a16a0929
1590be3539b
hex566f42729

23202113321 has 4 divisors (see below), whose sum is σ = 24423277200. Its totient is φ = 21980949444.

The previous prime is 23202113309. The next prime is 23202113377. The reversal of 23202113321 is 12331120232.

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.

It is a de Polignac number, because none of the positive numbers 2k-23202113321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23202113293 and 23202113302.

It is not an unprimeable number, because it can be changed into a prime (23202113021) 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, 610581911 + ... + 610581948.

It is an arithmetic number, because the mean of its divisors is an integer number (6105819300).

Almost surely, 223202113321 is an apocalyptic number.

It is an amenable number.

23202113321 is a deficient number, since it is larger than the sum of its proper divisors (1221163879).

23202113321 is a wasteful number, since it uses less digits than its factorization.

23202113321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1221163878.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 23202113321 its reverse (12331120232), we get a palindrome (35533233553).

The spelling of 23202113321 in words is "twenty-three billion, two hundred two million, one hundred thirteen thousand, three hundred twenty-one".

Divisors: 1 19 1221163859 23202113321