121303223434 has 4 divisors (see below), whose sum is σ = 181954835154. Its totient is φ = 60651611716.

The previous prime is 121303223407. The next prime is 121303223453. The reversal of 121303223434 is 434322303121.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 116141232025 + 5161991409 = 340795^2 + 71847^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30325805857 + ... + 30325805860.

Almost surely, 2^121303223434 is an apocalyptic number.

121303223434 is a deficient number, since it is larger than the sum of its proper divisors (60651611720).

121303223434 is an equidigital number, since it uses as much as digits as its factorization.

121303223434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60651611719.

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 121303223434 its reverse (434322303121), we get a palindrome (555625526555).

The spelling of 121303223434 in words is "one hundred twenty-one billion, three hundred three million, two hundred twenty-three thousand, four hundred thirty-four".