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23012001003 = 331247440871
BaseRepresentation
bin10101011011100111…
…110100010011101011
32012101202010202212110
4111123213310103223
5334112033013003
614323243013403
71443154531635
oct253347642353
965352122773
1023012001003
119839746a52
12456280a263
132229701754
141184333a55
158ea3d0a03
hex55b9f44eb

23012001003 has 8 divisors (see below), whose sum is σ = 31672431616. Its totient is φ = 14846452200.

The previous prime is 23012000983. The next prime is 23012001007. The reversal of 23012001003 is 30010021032.

It is a happy number.

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

It is not a de Polignac number, because 23012001003 - 26 = 23012000939 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23012001003.

It is not an unprimeable number, because it can be changed into a prime (23012001007) 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, 123720343 + ... + 123720528.

It is an arithmetic number, because the mean of its divisors is an integer number (3959053952).

Almost surely, 223012001003 is an apocalyptic number.

23012001003 is a deficient number, since it is larger than the sum of its proper divisors (8660430613).

23012001003 is a wasteful number, since it uses less digits than its factorization.

23012001003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 247440905.

The product of its (nonzero) digits is 36, while the sum is 12.

Adding to 23012001003 its reverse (30010021032), we get a palindrome (53022022035).

The spelling of 23012001003 in words is "twenty-three billion, twelve million, one thousand, three".

Divisors: 1 3 31 93 247440871 742322613 7670667001 23012001003