121304431322 has 4 divisors (see below), whose sum is σ = 181956646986. Its totient is φ = 60652215660.

The previous prime is 121304431207. The next prime is 121304431327. The reversal of 121304431322 is 223134403121.

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., 81779412841 + 39525018481 = 285971^2 + 198809^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121304431291 and 121304431300.

It is not an unprimeable number, because it can be changed into a prime (121304431327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30326107829 + ... + 30326107832.

Almost surely, 2^121304431322 is an apocalyptic number.

121304431322 is a deficient number, since it is larger than the sum of its proper divisors (60652215664).

121304431322 is an equidigital number, since it uses as much as digits as its factorization.

121304431322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60652215663.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121304431322 its reverse (223134403121), we get a palindrome (344438834443).

The spelling of 121304431322 in words is "one hundred twenty-one billion, three hundred four million, four hundred thirty-one thousand, three hundred twenty-two".