121103140303011 has 4 divisors (see below), whose sum is σ = 161470853737352. Its totient is φ = 80735426868672.

The previous prime is 121103140302997. The next prime is 121103140303043. The reversal of 121103140303011 is 110303041301121.

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

It is not a de Polignac number, because 121103140303011 - 2²¹ = 121103138205859 is a prime.

It is a super-2 number, since 2×121103140303011² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121103140303081) 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, 20183856717166 + ... + 20183856717171.

It is an arithmetic number, because the mean of its divisors is an integer number (40367713434338).

Almost surely, 2^{121103140303011} is an apocalyptic number.

121103140303011 is a deficient number, since it is larger than the sum of its proper divisors (40367713434341).

121103140303011 is an equidigital number, since it uses as much as digits as its factorization.

121103140303011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40367713434340.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 121103140303011 its reverse (110303041301121), we get a palindrome (231406181604132).

The spelling of 121103140303011 in words is "one hundred twenty-one trillion, one hundred three billion, one hundred forty million, three hundred three thousand, eleven".