10031212020113 has 4 divisors (see below), whose sum is σ = 10143922267620. Its totient is φ = 9918501772608.

The previous prime is 10031212020091. The next prime is 10031212020121. The reversal of 10031212020113 is 31102021213001.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1097909987344 + 8933302032769 = 1047812^2 + 2988863^2 .

It is a cyclic number.

It is not a de Polignac number, because 10031212020113 - 2¹⁸ = 10031211757969 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10031212020091 and 10031212020100.

It is not an unprimeable number, because it can be changed into a prime (10031212023113) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 56355123620 + ... + 56355123797.

It is an arithmetic number, because the mean of its divisors is an integer number (2535980566905).

Almost surely, 2^{10031212020113} is an apocalyptic number.

It is an amenable number.

10031212020113 is a deficient number, since it is larger than the sum of its proper divisors (112710247507).

10031212020113 is an equidigital number, since it uses as much as digits as its factorization.

10031212020113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112710247506.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 10031212020113 its reverse (31102021213001), we get a palindrome (41133233233114).

The spelling of 10031212020113 in words is "ten trillion, thirty-one billion, two hundred twelve million, twenty thousand, one hundred thirteen".