10031220427 has 2 divisors, whose sum is σ = 10031220428. Its totient is φ = 10031220426.

The previous prime is 10031220421. The next prime is 10031220443. The reversal of 10031220427 is 72402213001.

10031220427 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 10031220427 - 2¹⁵ = 10031187659 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10031220398 and 10031220407.

It is not a weakly prime, because it can be changed into another prime (10031220421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5015610213 + 5015610214.

It is an arithmetic number, because the mean of its divisors is an integer number (5015610214).

Almost surely, 2^10031220427 is an apocalyptic number.

10031220427 is a deficient number, since it is larger than the sum of its proper divisors (1).

10031220427 is an equidigital number, since it uses as much as digits as its factorization.

10031220427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 672, while the sum is 22.

Adding to 10031220427 its reverse (72402213001), we get a palindrome (82433433428).

The spelling of 10031220427 in words is "ten billion, thirty-one million, two hundred twenty thousand, four hundred twenty-seven".