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10430131321 = 40912549531
BaseRepresentation
bin10011011011010111…
…10010110001111001
3222220220010120101001
421231223302301321
5132330103200241
64442545525001
7516316440061
oct115553626171
928826116331
1010430131321
1144725a0045
122031043761
13ca2b4b74c
1470d32c3a1
15410a24431
hex26daf2c79

10430131321 has 4 divisors (see below), whose sum is σ = 10432684944. Its totient is φ = 10427577700.

The previous prime is 10430131307. The next prime is 10430131331. The reversal of 10430131321 is 12313103401.

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: 12313103401 = 75793162457.

It is a cyclic number.

It is not a de Polignac number, because 10430131321 - 225 = 10396576889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10430131331) 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, 1270675 + ... + 1278856.

It is an arithmetic number, because the mean of its divisors is an integer number (2608171236).

Almost surely, 210430131321 is an apocalyptic number.

It is an amenable number.

10430131321 is a deficient number, since it is larger than the sum of its proper divisors (2553623).

10430131321 is an equidigital number, since it uses as much as digits as its factorization.

10430131321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2553622.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 10430131321 its reverse (12313103401), we get a palindrome (22743234722).

The spelling of 10430131321 in words is "ten billion, four hundred thirty million, one hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 4091 2549531 10430131321