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23221101131 = 79739397751
BaseRepresentation
bin10101101000000101…
…011110001001001011
32012221022121011022122
4111220011132021023
5340024100214011
614400112441455
71451304050204
oct255005361113
965838534278
1023221101131
119936784a78
12460084928b
132260b23b37
1411a40045ab
1590d9363db
hex56815e24b

23221101131 has 8 divisors (see below), whose sum is σ = 23546918400. Its totient is φ = 22896081000.

The previous prime is 23221101119. The next prime is 23221101143. The reversal of 23221101131 is 13110112232.

It is an interprime number because it is at equal distance from previous prime (23221101119) and next prime (23221101143).

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 23221101131 - 230 = 22147359307 is a prime.

It is a super-2 number, since 2×232211011312 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23221101151) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 140495 + ... + 257256.

It is an arithmetic number, because the mean of its divisors is an integer number (2943364800).

Almost surely, 223221101131 is an apocalyptic number.

23221101131 is a deficient number, since it is larger than the sum of its proper divisors (325817269).

23221101131 is an equidigital number, since it uses as much as digits as its factorization.

23221101131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 398569.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 23221101131 its reverse (13110112232), we get a palindrome (36331213363).

The spelling of 23221101131 in words is "twenty-three billion, two hundred twenty-one million, one hundred one thousand, one hundred thirty-one".

Divisors: 1 79 739 58381 397751 31422329 293937989 23221101131