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123233034013 = 251490968263
BaseRepresentation
bin111001011000101000…
…0101101111100011101
3102210002022200202101221
41302301100231330131
54004340124042023
6132340143333341
711621554335355
oct1626120557435
9383068622357
10123233034013
1148298920461
121ba725b1251
13b80bc50b4b
145d7088db65
153313c2b85d
hex1cb142df1d

123233034013 has 4 divisors (see below), whose sum is σ = 123724002528. Its totient is φ = 122742065500.

The previous prime is 123233033951. The next prime is 123233034031. The reversal of 123233034013 is 310430332321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310430332321 = 2897107155793.

It is a cyclic number.

It is not a de Polignac number, because 123233034013 - 217 = 123232902941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123233034413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 245483881 + ... + 245484382.

It is an arithmetic number, because the mean of its divisors is an integer number (30931000632).

Almost surely, 2123233034013 is an apocalyptic number.

It is an amenable number.

123233034013 is a deficient number, since it is larger than the sum of its proper divisors (490968515).

123233034013 is an equidigital number, since it uses as much as digits as its factorization.

123233034013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490968514.

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 123233034013 its reverse (310430332321), we get a palindrome (433663366334).

The spelling of 123233034013 in words is "one hundred twenty-three billion, two hundred thirty-three million, thirty-four thousand, thirteen".

Divisors: 1 251 490968263 123233034013