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10431131239 is a prime number
BaseRepresentation
bin10011011011011111…
…00110111001100111
3222220222000101000001
421231233212321213
5132330332144424
64443023202131
7516331103224
oct115557467147
928828011001
1010431131239
114473113321
122031446347
13ca310b909
1470d50c94b
15410b70844
hex26dbe6e67

10431131239 has 2 divisors, whose sum is σ = 10431131240. Its totient is φ = 10431131238.

The previous prime is 10431131237. The next prime is 10431131273. The reversal of 10431131239 is 93213113401.

It is a weak prime.

It is an emirp because it is prime and its reverse (93213113401) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10431131239 - 21 = 10431131237 is a prime.

Together with 10431131237, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10431131237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5215565619 + 5215565620.

It is an arithmetic number, because the mean of its divisors is an integer number (5215565620).

Almost surely, 210431131239 is an apocalyptic number.

10431131239 is a deficient number, since it is larger than the sum of its proper divisors (1).

10431131239 is an equidigital number, since it uses as much as digits as its factorization.

10431131239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 10431131239 in words is "ten billion, four hundred thirty-one million, one hundred thirty-one thousand, two hundred thirty-nine".