121541433204 has 24 divisors (see below), whose sum is σ = 284160502080. Its totient is φ = 40433264704.

The previous prime is 121541433199. The next prime is 121541433263. The reversal of 121541433204 is 402334145121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10062009 + ... + 10074080.

It is an arithmetic number, because the mean of its divisors is an integer number (11840020920).

Almost surely, 2^121541433204 is an apocalyptic number.

It is an amenable number.

121541433204 is an abundant number, since it is smaller than the sum of its proper divisors (162619068876).

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

121541433204 is a wasteful number, since it uses less digits than its factorization.

121541433204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20136599 (or 20136597 counting only the distinct ones).

The product of its (nonzero) digits is 11520, while the sum is 30.

Adding to 121541433204 its reverse (402334145121), we get a palindrome (523875578325).

The spelling of 121541433204 in words is "one hundred twenty-one billion, five hundred forty-one million, four hundred thirty-three thousand, two hundred four".