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23201033011 = 1321109123791
BaseRepresentation
bin10101100110111000…
…111010101100110011
32012212220211121000221
4111212320322230303
5340003431024021
614354114353511
71450641345442
oct254670725463
965786747027
1023201033011
119926418552
1245b5b8b897
132259918700
1411a149cd59
1590bcc0241
hex566e3ab33

23201033011 has 12 divisors (see below), whose sum is σ = 25145868960. Its totient is φ = 21396853920.

The previous prime is 23201032991. The next prime is 23201033021. The reversal of 23201033011 is 11033010232.

It is a de Polignac number, because none of the positive numbers 2k-23201033011 is a prime.

It is a super-2 number, since 2×232010330112 (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 (23201033021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 125526 + ... + 249316.

It is an arithmetic number, because the mean of its divisors is an integer number (2095489080).

Almost surely, 223201033011 is an apocalyptic number.

23201033011 is a deficient number, since it is larger than the sum of its proper divisors (1944835949).

23201033011 is a wasteful number, since it uses less digits than its factorization.

23201033011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124926 (or 124913 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 23201033011 its reverse (11033010232), we get a palindrome (34234043243).

The spelling of 23201033011 in words is "twenty-three billion, two hundred one million, thirty-three thousand, eleven".

Divisors: 1 13 169 1109 14417 123791 187421 1609283 20920679 137284219 1784694847 23201033011