1231331134322 has 4 divisors (see below), whose sum is σ = 1846996701486. Its totient is φ = 615665567160.

The previous prime is 1231331134303. The next prime is 1231331134351. The reversal of 1231331134322 is 2234311331321.

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., 1230859332481 + 471801841 = 1109441^2 + 21721^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 307832783579 + ... + 307832783582.

Almost surely, 2^{1231331134322} is an apocalyptic number.

1231331134322 is a deficient number, since it is larger than the sum of its proper divisors (615665567164).

1231331134322 is an equidigital number, since it uses as much as digits as its factorization.

1231331134322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 615665567163.

The product of its digits is 7776, while the sum is 29.

Adding to 1231331134322 its reverse (2234311331321), we get a palindrome (3465642465643).

The spelling of 1231331134322 in words is "one trillion, two hundred thirty-one billion, three hundred thirty-one million, one hundred thirty-four thousand, three hundred twenty-two".