121423142304 has 36 divisors (see below), whose sum is σ = 345297061746. Its totient is φ = 40474380672.

The previous prime is 121423142293. The next prime is 121423142339. The reversal of 121423142304 is 403241324121.

121423142304 is a `hidden beast` number, since 1 + 2 + 1 + 4 + 231 + 423 + 0 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 101727826704 + 19695315600 = 318948^2 + 140340^2 .

It is a tau number, because it is divible by the number of its divisors (36).

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, 210803779 + ... + 210804354.

Almost surely, 2^121423142304 is an apocalyptic number.

It is an amenable number.

121423142304 is an abundant number, since it is smaller than the sum of its proper divisors (223873919442).

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

121423142304 is a wasteful number, since it uses less digits than its factorization.

121423142304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421608149 (or 421608138 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 121423142304 its reverse (403241324121), we get a palindrome (524664466425).

The spelling of 121423142304 in words is "one hundred twenty-one billion, four hundred twenty-three million, one hundred forty-two thousand, three hundred four".