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123020231033 = 7371931245977
BaseRepresentation
bin111001010010010010…
…0111100000101111001
3102202112111021020121002
41302210210330011321
54003421134343113
6132303102254345
711613361465460
oct1624444740571
9382474236532
10123020231033
1148199793427
121ba132873b5
13b7a6b3321b
145d504d79d7
1533001e3c58
hex1ca493c179

123020231033 has 16 divisors (see below), whose sum is σ = 144469766784. Its totient is φ = 102542474880.

The previous prime is 123020231003. The next prime is 123020231053. The reversal of 123020231033 is 330132020321.

It is not a de Polignac number, because 123020231033 - 28 = 123020230777 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 123020230996 and 123020231014.

It is not an unprimeable number, because it can be changed into a prime (123020231003) 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, 377141 + ... + 623117.

It is an arithmetic number, because the mean of its divisors is an integer number (9029360424).

Almost surely, 2123020231033 is an apocalyptic number.

It is an amenable number.

123020231033 is a deficient number, since it is larger than the sum of its proper divisors (21449535751).

123020231033 is a wasteful number, since it uses less digits than its factorization.

123020231033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247952.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123020231033 its reverse (330132020321), we get a palindrome (453152251354).

The spelling of 123020231033 in words is "one hundred twenty-three billion, twenty million, two hundred thirty-one thousand, thirty-three".

Divisors: 1 7 37 259 1931 13517 71447 245977 500129 1721839 9101149 63708043 474981587 3324871109 17574318719 123020231033