103103220321251 has 2 divisors, whose sum is σ = 103103220321252. Its totient is φ = 103103220321250.

The previous prime is 103103220321247. The next prime is 103103220321281. The reversal of 103103220321251 is 152123022301301.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 103103220321251 - 2² = 103103220321247 is a prime.

It is a super-4 number, since 4×103103220321251⁴ (a number of 57 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 103103220321251.

It is not a weakly prime, because it can be changed into another prime (103103220321281) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51551610160625 + 51551610160626.

It is an arithmetic number, because the mean of its divisors is an integer number (51551610160626).

Almost surely, 2^{103103220321251} is an apocalyptic number.

103103220321251 is a deficient number, since it is larger than the sum of its proper divisors (1).

103103220321251 is an equidigital number, since it uses as much as digits as its factorization.

103103220321251 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2160, while the sum is 26.

Adding to 103103220321251 its reverse (152123022301301), we get a palindrome (255226242622552).

The spelling of 103103220321251 in words is "one hundred three trillion, one hundred three billion, two hundred twenty million, three hundred twenty-one thousand, two hundred fifty-one".