103010111021 has 2 divisors, whose sum is σ = 103010111022. Its totient is φ = 103010111020.

The previous prime is 103010110993. The next prime is 103010111033. The reversal of 103010111021 is 120111010301.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 55578062500 + 47432048521 = 235750^2 + 217789^2 .

It is a cyclic number.

It is not a de Polignac number, because 103010111021 - 2³⁴ = 85830241837 is a prime.

It is a super-2 number, since 2×103010111021² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103010110993 and 103010111011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103010111221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51505055510 + 51505055511.

It is an arithmetic number, because the mean of its divisors is an integer number (51505055511).

Almost surely, 2^103010111021 is an apocalyptic number.

It is an amenable number.

103010111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103010111021 is an equidigital number, since it uses as much as digits as its factorization.

103010111021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 103010111021 its reverse (120111010301), we get a palindrome (223121121322).

The spelling of 103010111021 in words is "one hundred three billion, ten million, one hundred eleven thousand, twenty-one".