101131120213 has 2 divisors, whose sum is σ = 101131120214. Its totient is φ = 101131120212.

The previous prime is 101131120199. The next prime is 101131120271. The reversal of 101131120213 is 312021131101.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83669612049 + 17461508164 = 289257^2 + 132142^2 .

It is a cyclic number.

It is not a de Polignac number, because 101131120213 - 2⁹ = 101131119701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101132120213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50565560106 + 50565560107.

It is an arithmetic number, because the mean of its divisors is an integer number (50565560107).

Almost surely, 2^101131120213 is an apocalyptic number.

It is an amenable number.

101131120213 is a deficient number, since it is larger than the sum of its proper divisors (1).

101131120213 is an equidigital number, since it uses as much as digits as its factorization.

101131120213 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101131120213 its reverse (312021131101), we get a palindrome (413152251314).

The spelling of 101131120213 in words is "one hundred one billion, one hundred thirty-one million, one hundred twenty thousand, two hundred thirteen".