121302111204 has 18 divisors (see below), whose sum is σ = 306624781190. Its totient is φ = 40434037056.

The previous prime is 121302111197. The next prime is 121302111247. The reversal of 121302111204 is 402111203121.

It can be written as a sum of positive squares in only one way, i.e., 99728376804 + 21573734400 = 315798^2 + 146880^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1684751509 + ... + 1684751580.

Almost surely, 2^121302111204 is an apocalyptic number.

It is an amenable number.

121302111204 is an abundant number, since it is smaller than the sum of its proper divisors (185322669986).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121302111204 is a wasteful number, since it uses less digits than its factorization.

121302111204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3369503099 (or 3369503094 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 121302111204 its reverse (402111203121), we get a palindrome (523413314325).

The spelling of 121302111204 in words is "one hundred twenty-one billion, three hundred two million, one hundred eleven thousand, two hundred four".