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103010312011 = 195421595369
BaseRepresentation
bin101111111101111100…
…1001001111101001011
3100211212222002001000011
41133323321021331023
53141431114441021
6115153340252351
710304456130235
oct1377371117513
9324788061004
10103010312011
113a7606aa072
1217b69b410b7
139938394859
144db2b8d255
152a2d668de1
hex17fbe49f4b

103010312011 has 4 divisors (see below), whose sum is σ = 108431907400. Its totient is φ = 97588716624.

The previous prime is 103010311949. The next prime is 103010312017. The reversal of 103010312011 is 110213010301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 103010312011 - 213 = 103010303819 is a prime.

It is a super-2 number, since 2×1030103120112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103010311982 and 103010312000.

It is not an unprimeable number, because it can be changed into a prime (103010312017) 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, 2710797666 + ... + 2710797703.

It is an arithmetic number, because the mean of its divisors is an integer number (27107976850).

Almost surely, 2103010312011 is an apocalyptic number.

103010312011 is a deficient number, since it is larger than the sum of its proper divisors (5421595389).

103010312011 is an equidigital number, since it uses as much as digits as its factorization.

103010312011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5421595388.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 103010312011 its reverse (110213010301), we get a palindrome (213223322312).

The spelling of 103010312011 in words is "one hundred three billion, ten million, three hundred twelve thousand, eleven".

Divisors: 1 19 5421595369 103010312011