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23001232001 = 1189127184997
BaseRepresentation
bin10101011010111110…
…101111001010000001
32012100222212122120112
4111122332233022001
5334101303411001
614322220121105
71442664150266
oct253276571201
965328778515
1023001232001
119833661050
12455b096195
132227400b67
141182b2d26d
158e94a4cbb
hex55afaf281

23001232001 has 16 divisors (see below), whose sum is σ = 25574123520. Its totient is φ = 20512356480.

The previous prime is 23001231973. The next prime is 23001232043. The reversal of 23001232001 is 10023210032.

It is a happy number.

It is not a de Polignac number, because 23001232001 - 210 = 23001230977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23001232301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31835 + ... + 216831.

It is an arithmetic number, because the mean of its divisors is an integer number (1598382720).

Almost surely, 223001232001 is an apocalyptic number.

It is an amenable number.

23001232001 is a deficient number, since it is larger than the sum of its proper divisors (2572891519).

23001232001 is a wasteful number, since it uses less digits than its factorization.

23001232001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 185224.

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

Adding to 23001232001 its reverse (10023210032), we get a palindrome (33024442033).

The spelling of 23001232001 in words is "twenty-three billion, one million, two hundred thirty-two thousand, one".

Divisors: 1 11 89 127 979 1397 11303 124333 184997 2034967 16464733 23494619 181112063 258440809 2091021091 23001232001