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13120431113441 = 73939474498177
BaseRepresentation
bin1011111011101101011010…
…1000101100010011100001
31201110022010101212222020102
42332323112220230103201
53204431120331112231
643523235353152145
72522630341232321
oct276732650542341
951408111788212
1013120431113441
1141a9386350813
12157a9b19bb655
13742336288aa2
14335064711281
1517b45c3e9acb
hexbeed6a2c4e1

13120431113441 has 8 divisors (see below), whose sum is σ = 13141516990560. Its totient is φ = 13099354242048.

The previous prime is 13120431113393. The next prime is 13120431113473. The reversal of 13120431113441 is 14431113402131.

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

It is a cyclic number.

It is not a de Polignac number, because 13120431113441 - 226 = 13120364004577 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13120431113641) 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, 667745 + ... + 5165921.

It is an arithmetic number, because the mean of its divisors is an integer number (1642689623820).

Almost surely, 213120431113441 is an apocalyptic number.

It is an amenable number.

13120431113441 is a deficient number, since it is larger than the sum of its proper divisors (21085877119).

13120431113441 is an equidigital number, since it uses as much as digits as its factorization.

13120431113441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4502863.

The product of its (nonzero) digits is 3456, while the sum is 29.

Adding to 13120431113441 its reverse (14431113402131), we get a palindrome (27551544515572).

The spelling of 13120431113441 in words is "thirteen trillion, one hundred twenty billion, four hundred thirty-one million, one hundred thirteen thousand, four hundred forty-one".

Divisors: 1 739 3947 2916833 4498177 3324152803 17754304619 13120431113441