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31010313133 is a prime number
BaseRepresentation
bin11100111000010110…
…111101001110101101
32222001011101010110001
4130320112331032231
51002002120010013
622125042344301
72145315212122
oct347026751655
988034333401
1031010313133
1112173571268
12601535b091
132c027a3517
1417026bc749
15c17695ddd
hex7385bd3ad

31010313133 has 2 divisors, whose sum is σ = 31010313134. Its totient is φ = 31010313132.

The previous prime is 31010313119. The next prime is 31010313149. The reversal of 31010313133 is 33131301013.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18144628804 + 12865684329 = 134702^2 + 113427^2 .

It is a cyclic number.

It is not a de Polignac number, because 31010313133 - 25 = 31010313101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31010313133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31010313233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15505156566 + 15505156567.

It is an arithmetic number, because the mean of its divisors is an integer number (15505156567).

Almost surely, 231010313133 is an apocalyptic number.

It is an amenable number.

31010313133 is a deficient number, since it is larger than the sum of its proper divisors (1).

31010313133 is an equidigital number, since it uses as much as digits as its factorization.

31010313133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 243, while the sum is 19.

Adding to 31010313133 its reverse (33131301013), we get a palindrome (64141614146).

The spelling of 31010313133 in words is "thirty-one billion, ten million, three hundred thirteen thousand, one hundred thirty-three".