103102021123 has 2 divisors, whose sum is σ = 103102021124. Its totient is φ = 103102021122.

The previous prime is 103102021111. The next prime is 103102021151. The reversal of 103102021123 is 321120201301.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103102021123 is a prime.

It is a super-2 number, since 2×103102021123² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103102021097 and 103102021106.

It is not a weakly prime, because it can be changed into another prime (103102021193) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51551010561 + 51551010562.

It is an arithmetic number, because the mean of its divisors is an integer number (51551010562).

Almost surely, 2^103102021123 is an apocalyptic number.

103102021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

103102021123 is an equidigital number, since it uses as much as digits as its factorization.

103102021123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 103102021123 its reverse (321120201301), we get a palindrome (424222222424).

The spelling of 103102021123 in words is "one hundred three billion, one hundred two million, twenty-one thousand, one hundred twenty-three".