103020121013 has 4 divisors (see below), whose sum is σ = 103091713920. Its totient is φ = 102948528108.

The previous prime is 103020120967. The next prime is 103020121019. The reversal of 103020121013 is 310121020301.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 310121020301 = 509 ⋅609275089.

It is a cyclic number.

It is not a de Polignac number, because 103020121013 - 2¹⁰ = 103020119989 is a prime.

It is a super-2 number, since 2×103020121013² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103020121019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35794295 + ... + 35797172.

It is an arithmetic number, because the mean of its divisors is an integer number (25772928480).

Almost surely, 2^103020121013 is an apocalyptic number.

It is an amenable number.

103020121013 is a deficient number, since it is larger than the sum of its proper divisors (71592907).

103020121013 is an equidigital number, since it uses as much as digits as its factorization.

103020121013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71592906.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 103020121013 its reverse (310121020301), we get a palindrome (413141141314).

The spelling of 103020121013 in words is "one hundred three billion, twenty million, one hundred twenty-one thousand, thirteen".