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23003100121 = 29253516077
BaseRepresentation
bin10101011011000101…
…110111001111011001
32012101010101120011011
4111123011313033121
5334102243200441
614322324133521
71443016060561
oct253305671731
965333346134
1023003100121
119834717651
12455b8372a1
132227906261
141183097da1
158e9723581
hex55b1773d9

23003100121 has 12 divisors (see below), whose sum is σ = 24273212652. Its totient is φ = 21790793024.

The previous prime is 23003100091. The next prime is 23003100137. The reversal of 23003100121 is 12100130032.

It can be written as a sum of positive squares in 6 ways, for example, as 340808521 + 22662291600 = 18461^2 + 150540^2 .

It is not a de Polignac number, because 23003100121 - 217 = 23002969049 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23003107121) 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, 213466 + ... + 302611.

It is an arithmetic number, because the mean of its divisors is an integer number (2022767721).

Almost surely, 223003100121 is an apocalyptic number.

It is an amenable number.

23003100121 is a deficient number, since it is larger than the sum of its proper divisors (1270112531).

23003100121 is an equidigital number, since it uses as much as digits as its factorization.

23003100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516188 (or 516159 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 23003100121 its reverse (12100130032), we get a palindrome (35103230153).

The spelling of 23003100121 in words is "twenty-three billion, three million, one hundred thousand, one hundred twenty-one".

Divisors: 1 29 53 841 1537 44573 516077 14966233 27352081 434020757 793210349 23003100121