Search a number
-
+
13213031071 is a prime number
BaseRepresentation
bin11000100111000111…
…01101101010011111
31021002211122112011011
430103203231222133
5204030013443241
610023041040051
7645300624322
oct142343555237
937084575134
1013213031071
115670458899
122689026027
13132756c3a6
148d4b807b9
15524ed2281
hex3138eda9f

13213031071 has 2 divisors, whose sum is σ = 13213031072. Its totient is φ = 13213031070.

The previous prime is 13213030967. The next prime is 13213031119. The reversal of 13213031071 is 17013031231.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13213031071 - 215 = 13212998303 is a prime.

It is a super-2 number, since 2×132130310712 (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13213031371) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6606515535 + 6606515536.

It is an arithmetic number, because the mean of its divisors is an integer number (6606515536).

Almost surely, 213213031071 is an apocalyptic number.

13213031071 is a deficient number, since it is larger than the sum of its proper divisors (1).

13213031071 is an equidigital number, since it uses as much as digits as its factorization.

13213031071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 378, while the sum is 22.

The spelling of 13213031071 in words is "thirteen billion, two hundred thirteen million, thirty-one thousand, seventy-one".