Search a number
-
+
103211232431 is a prime number
BaseRepresentation
bin110000000011111011…
…1100110110010101111
3100212101222010212000012
41200013313212302233
53142334033414211
6115225314523435
710312446000116
oct1400767466257
9325358125005
10103211232431
113a8540605aa
121800529657b
13996abb1a88
144dd1730c7d
152a41105d8b
hex1807de6caf

103211232431 has 2 divisors, whose sum is σ = 103211232432. Its totient is φ = 103211232430.

The previous prime is 103211232361. The next prime is 103211232461. The reversal of 103211232431 is 134232112301.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 103211232431 - 218 = 103210970287 is a prime.

It is a super-2 number, since 2×1032112324312 (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103211232397 and 103211232406.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103211232461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51605616215 + 51605616216.

It is an arithmetic number, because the mean of its divisors is an integer number (51605616216).

Almost surely, 2103211232431 is an apocalyptic number.

103211232431 is a deficient number, since it is larger than the sum of its proper divisors (1).

103211232431 is an equidigital number, since it uses as much as digits as its factorization.

103211232431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 103211232431 its reverse (134232112301), we get a palindrome (237443344732).

The spelling of 103211232431 in words is "one hundred three billion, two hundred eleven million, two hundred thirty-two thousand, four hundred thirty-one".