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23012001023 = 1117345735597
BaseRepresentation
bin10101011011100111…
…110100010011111111
32012101202010202220012
4111123213310103333
5334112033013043
614323243013435
71443154531664
oct253347642377
965352122805
1023012001023
119839746a70
12456280a27b
13222970176b
141184333a6b
158ea3d0a18
hex55b9f44ff

23012001023 has 16 divisors (see below), whose sum is σ = 26589142944. Its totient is φ = 19683164160.

The previous prime is 23012001007. The next prime is 23012001037. The reversal of 23012001023 is 32010021032.

It is a happy number.

It is not a de Polignac number, because 23012001023 - 24 = 23012001007 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23012000989 and 23012001007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23012001053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 628661 + ... + 664257.

It is an arithmetic number, because the mean of its divisors is an integer number (1661821434).

Almost surely, 223012001023 is an apocalyptic number.

23012001023 is a deficient number, since it is larger than the sum of its proper divisors (3577141921).

23012001023 is a wasteful number, since it uses less digits than its factorization.

23012001023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39082.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23012001023 its reverse (32010021032), we get a palindrome (55022022055).

The spelling of 23012001023 in words is "twenty-three billion, twelve million, one thousand, twenty-three".

Divisors: 1 11 17 187 3457 35597 38027 58769 391567 605149 646459 6656639 123058829 1353647119 2092000093 23012001023