121201113141 has 24 divisors (see below), whose sum is σ = 181350468000. Its totient is φ = 77908817952.

The previous prime is 121201113139. The next prime is 121201113161. The reversal of 121201113141 is 141311102121.

It is not a de Polignac number, because 121201113141 - 2¹ = 121201113139 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121201113161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121311 + ... + 507068.

It is an arithmetic number, because the mean of its divisors is an integer number (7556269500).

Almost surely, 2^121201113141 is an apocalyptic number.

It is an amenable number.

121201113141 is a deficient number, since it is larger than the sum of its proper divisors (60149354859).

121201113141 is a wasteful number, since it uses less digits than its factorization.

121201113141 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 629153 (or 629150 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 121201113141 its reverse (141311102121), we get a palindrome (262512215262).

The spelling of 121201113141 in words is "one hundred twenty-one billion, two hundred one million, one hundred thirteen thousand, one hundred forty-one".