121201011342103 has 32 divisors (see below), whose sum is σ = 151170563063808. Its totient is φ = 94403098944000.

The previous prime is 121201011342091. The next prime is 121201011342133. The reversal of 121201011342103 is 301243110102121.

It is not a de Polignac number, because 121201011342103 - 2⁵ = 121201011342071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201011342133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2249142826 + ... + 2249196712.

It is an arithmetic number, because the mean of its divisors is an integer number (4724080095744).

Almost surely, 2^{121201011342103} is an apocalyptic number.

121201011342103 is a deficient number, since it is larger than the sum of its proper divisors (29969551721705).

121201011342103 is a wasteful number, since it uses less digits than its factorization.

121201011342103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65503.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 121201011342103 its reverse (301243110102121), we get a palindrome (422444121444224).

The spelling of 121201011342103 in words is "one hundred twenty-one trillion, two hundred one billion, eleven million, three hundred forty-two thousand, one hundred three".