121204240013 has 8 divisors (see below), whose sum is σ = 127586740800. Its totient is φ = 114822072288.

The previous prime is 121204239973. The next prime is 121204240061. The reversal of 121204240013 is 310042402121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 121204240013 - 2¹⁶ = 121204174477 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 (121204240063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1081928 + ... + 1188686.

It is an arithmetic number, because the mean of its divisors is an integer number (15948342600).

Almost surely, 2^121204240013 is an apocalyptic number.

It is an amenable number.

121204240013 is a deficient number, since it is larger than the sum of its proper divisors (6382500787).

121204240013 is a wasteful number, since it uses less digits than its factorization.

121204240013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166531.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 121204240013 its reverse (310042402121), we get a palindrome (431246642134).

The spelling of 121204240013 in words is "one hundred twenty-one billion, two hundred four million, two hundred forty thousand, thirteen".