103020121211 has 4 divisors (see below), whose sum is σ = 117737281392. Its totient is φ = 88302961032.

The previous prime is 103020121117. The next prime is 103020121223. The reversal of 103020121211 is 112121020301.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103020121211 is a prime.

It is a super-2 number, since 2×103020121211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103020121241) 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, 7358580080 + ... + 7358580093.

It is an arithmetic number, because the mean of its divisors is an integer number (29434320348).

Almost surely, 2^103020121211 is an apocalyptic number.

103020121211 is a deficient number, since it is larger than the sum of its proper divisors (14717160181).

103020121211 is an equidigital number, since it uses as much as digits as its factorization.

103020121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14717160180.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 103020121211 its reverse (112121020301), we get a palindrome (215141141512).

The spelling of 103020121211 in words is "one hundred three billion, twenty million, one hundred twenty-one thousand, two hundred eleven".