121431444234 has 16 divisors (see below), whose sum is σ = 243786324672. Its totient is φ = 40323242048.

The previous prime is 121431444229. The next prime is 121431444247. The reversal of 121431444234 is 432444134121.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 121431444195 and 121431444204.

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, 38474799 + ... + 38477954.

It is an arithmetic number, because the mean of its divisors is an integer number (15236645292).

Almost surely, 2^121431444234 is an apocalyptic number.

121431444234 is an abundant number, since it is smaller than the sum of its proper divisors (122354880438).

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

121431444234 is a wasteful number, since it uses less digits than its factorization.

121431444234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76953021.

The product of its digits is 36864, while the sum is 33.

Adding to 121431444234 its reverse (432444134121), we get a palindrome (553875578355).

The spelling of 121431444234 in words is "one hundred twenty-one billion, four hundred thirty-one million, four hundred forty-four thousand, two hundred thirty-four".