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123201230001 = 3379911120001
BaseRepresentation
bin111001010111101011…
…1011001010010110001
3102210000002211221111120
41302233113121102301
54004304003330001
6132333045532453
711621020114323
oct1625727312261
9383002757446
10123201230001
1148281978653
121ba63a14129
13b8054969c5
145d6a571613
153311048236
hex1caf5d94b1

123201230001 has 16 divisors (see below), whose sum is σ = 168878381568. Its totient is φ = 79833600000.

The previous prime is 123201229993. The next prime is 123201230023. The reversal of 123201230001 is 100032102321.

It is not a de Polignac number, because 123201230001 - 23 = 123201229993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (123201230051) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 450000 + ... + 670001.

It is an arithmetic number, because the mean of its divisors is an integer number (10554898848).

Almost surely, 2123201230001 is an apocalyptic number.

It is an amenable number.

123201230001 is a deficient number, since it is larger than the sum of its proper divisors (45677151567).

123201230001 is a wasteful number, since it uses less digits than its factorization.

123201230001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1121032.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123201230001 its reverse (100032102321), we get a palindrome (223233332322).

The spelling of 123201230001 in words is "one hundred twenty-three billion, two hundred one million, two hundred thirty thousand, one".

Divisors: 1 3 37 111 991 2973 36667 110001 1120001 3360003 41440037 124320111 1109920991 3329762973 41067076667 123201230001