121431222134 has 16 divisors (see below), whose sum is σ = 182615428800. Its totient is φ = 60559467144.

The previous prime is 121431222097. The next prime is 121431222161. The reversal of 121431222134 is 431222134121.

It is a happy number.

It is a Curzon number.

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, 6240929 + ... + 6260355.

It is an arithmetic number, because the mean of its divisors is an integer number (11413464300).

Almost surely, 2^121431222134 is an apocalyptic number.

121431222134 is a deficient number, since it is larger than the sum of its proper divisors (61184206666).

121431222134 is a wasteful number, since it uses less digits than its factorization.

121431222134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27307.

The product of its digits is 2304, while the sum is 26.

Adding to 121431222134 its reverse (431222134121), we get a palindrome (552653356255).

The spelling of 121431222134 in words is "one hundred twenty-one billion, four hundred thirty-one million, two hundred twenty-two thousand, one hundred thirty-four".