121332230142 has 16 divisors (see below), whose sum is σ = 253215089280. Its totient is φ = 38685638552.

The previous prime is 121332230141. The next prime is 121332230147. The reversal of 121332230142 is 241032233121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121332230141) 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, 439609392 + ... + 439609667.

It is an arithmetic number, because the mean of its divisors is an integer number (15825943080).

Almost surely, 2^121332230142 is an apocalyptic number.

121332230142 is an abundant number, since it is smaller than the sum of its proper divisors (131882859138).

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

121332230142 is a wasteful number, since it uses less digits than its factorization.

121332230142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879219087.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 121332230142 its reverse (241032233121), we get a palindrome (362364463263).

The spelling of 121332230142 in words is "one hundred twenty-one billion, three hundred thirty-two million, two hundred thirty thousand, one hundred forty-two".