1020101213 has 2 divisors, whose sum is σ = 1020101214. Its totient is φ = 1020101212.

The previous prime is 1020101191. The next prime is 1020101237. The reversal of 1020101213 is 3121010201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 999697924 + 20403289 = 31618^2 + 4517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1020101213 - 2⁶ = 1020101149 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1020101194 and 1020101203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020101273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510050606 + 510050607.

It is an arithmetic number, because the mean of its divisors is an integer number (510050607).

Almost surely, 2^1020101213 is an apocalyptic number.

It is an amenable number.

1020101213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020101213 is an equidigital number, since it uses as much as digits as its factorization.

1020101213 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 1020101213 is about 31939.0233570158. The cubic root of 1020101213 is about 1006.6560036564.

Adding to 1020101213 its reverse (3121010201), we get a palindrome (4141111414).

The spelling of 1020101213 in words is "one billion, twenty million, one hundred one thousand, two hundred thirteen".