10131220322 has 4 divisors (see below), whose sum is σ = 15196830486. Its totient is φ = 5065610160.

The previous prime is 10131220289. The next prime is 10131220349. The reversal of 10131220322 is 22302213101.

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., 10078352881 + 52867441 = 100391^2 + 7271^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 10131220322.

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, 2532805079 + ... + 2532805082.

Almost surely, 2^10131220322 is an apocalyptic number.

10131220322 is a deficient number, since it is larger than the sum of its proper divisors (5065610164).

10131220322 is an equidigital number, since it uses as much as digits as its factorization.

10131220322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5065610163.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 10131220322 its reverse (22302213101), we get a palindrome (32433433423).

The spelling of 10131220322 in words is "ten billion, one hundred thirty-one million, two hundred twenty thousand, three hundred twenty-two".