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12402123141 = 34680788321
BaseRepresentation
bin10111000110011100…
…10110000110000101
31012000022210010121010
423203032112012011
5200344420420031
65410352312433
7616223210262
oct134316260605
935008703533
1012402123141
115294747751
1224a1542719
13122856a605
148591b6269
154c8c03246
hex2e3396185

12402123141 has 8 divisors (see below), whose sum is σ = 16536704704. Its totient is φ = 8267811840.

The previous prime is 12402123127. The next prime is 12402123163. The reversal of 12402123141 is 14132120421.

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

It is not a de Polignac number, because 12402123141 - 211 = 12402121093 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402123191) 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, 96261 + ... + 184581.

It is an arithmetic number, because the mean of its divisors is an integer number (2067088088).

Almost surely, 212402123141 is an apocalyptic number.

It is an amenable number.

12402123141 is a deficient number, since it is larger than the sum of its proper divisors (4134581563).

12402123141 is an equidigital number, since it uses as much as digits as its factorization.

12402123141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135131.

The product of its (nonzero) digits is 384, while the sum is 21.

Adding to 12402123141 its reverse (14132120421), we get a palindrome (26534243562).

The spelling of 12402123141 in words is "twelve billion, four hundred two million, one hundred twenty-three thousand, one hundred forty-one".

Divisors: 1 3 46807 88321 140421 264963 4134041047 12402123141