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23130201021 = 310772056701
BaseRepresentation
bin10101100010101010…
…101101101110111101
32012200222112221210220
4111202222231232331
5334332312413041
614343104251553
71446121315254
oct254252555675
965628487726
1023130201021
11989a439414
124596310bb9
1322480482a5
141195d0179b
1590597cd66
hex562aadbbd

23130201021 has 8 divisors (see below), whose sum is σ = 31128495264. Its totient is φ = 15276020400.

The previous prime is 23130201007. The next prime is 23130201023. The reversal of 23130201021 is 12010203132.

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

It is not a de Polignac number, because 23130201021 - 26 = 23130200957 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23130201023) 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, 36028030 + ... + 36028671.

It is an arithmetic number, because the mean of its divisors is an integer number (3891061908).

Almost surely, 223130201021 is an apocalyptic number.

It is an amenable number.

23130201021 is a deficient number, since it is larger than the sum of its proper divisors (7998294243).

23130201021 is a wasteful number, since it uses less digits than its factorization.

23130201021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72056811.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 23130201021 its reverse (12010203132), we get a palindrome (35140404153).

The spelling of 23130201021 in words is "twenty-three billion, one hundred thirty million, two hundred one thousand, twenty-one".

Divisors: 1 3 107 321 72056701 216170103 7710067007 23130201021