10103013121 has 2 divisors, whose sum is σ = 10103013122. Its totient is φ = 10103013120.

The previous prime is 10103013083. The next prime is 10103013131. The reversal of 10103013121 is 12131030101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10091207025 + 11806096 = 100455^2 + 3436^2 .

It is a cyclic number.

It is not a de Polignac number, because 10103013121 - 2¹⁵ = 10102980353 is a prime.

It is not a weakly prime, because it can be changed into another prime (10103013131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5051506560 + 5051506561.

It is an arithmetic number, because the mean of its divisors is an integer number (5051506561).

Almost surely, 2^10103013121 is an apocalyptic number.

It is an amenable number.

10103013121 is a deficient number, since it is larger than the sum of its proper divisors (1).

10103013121 is an equidigital number, since it uses as much as digits as its factorization.

10103013121 is an evil number, because the sum of its binary digits is even.

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

Adding to 10103013121 its reverse (12131030101), we get a palindrome (22234043222).

The spelling of 10103013121 in words is "ten billion, one hundred three million, thirteen thousand, one hundred twenty-one".