103121020169 has 2 divisors, whose sum is σ = 103121020170. Its totient is φ = 103121020168.

The previous prime is 103121020097. The next prime is 103121020201. The reversal of 103121020169 is 961020121301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 102584402944 + 536617225 = 320288^2 + 23165^2 .

It is a cyclic number.

It is not a de Polignac number, because 103121020169 - 2¹² = 103121016073 is a prime.

It is a super-2 number, since 2×103121020169² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (103121028169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51560510084 + 51560510085.

It is an arithmetic number, because the mean of its divisors is an integer number (51560510085).

Almost surely, 2^103121020169 is an apocalyptic number.

It is an amenable number.

103121020169 is a deficient number, since it is larger than the sum of its proper divisors (1).

103121020169 is an equidigital number, since it uses as much as digits as its factorization.

103121020169 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 103121020169 in words is "one hundred three billion, one hundred twenty-one million, twenty thousand, one hundred sixty-nine".