103020121011 has 4 divisors (see below), whose sum is σ = 137360161352. Its totient is φ = 68680080672.

The previous prime is 103020120967. The next prime is 103020121019. The reversal of 103020121011 is 110121020301.

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

It is not a de Polignac number, because 103020121011 - 2⁷ = 103020120883 is a prime.

It is a super-2 number, since 2×103020121011² (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 (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, 17170020166 + ... + 17170020171.

It is an arithmetic number, because the mean of its divisors is an integer number (34340040338).

Almost surely, 2^103020121011 is an apocalyptic number.

103020121011 is a deficient number, since it is larger than the sum of its proper divisors (34340040341).

103020121011 is an equidigital number, since it uses as much as digits as its factorization.

103020121011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34340040340.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 103020121011 its reverse (110121020301), we get a palindrome (213141141312).

The spelling of 103020121011 in words is "one hundred three billion, twenty million, one hundred twenty-one thousand, eleven".