1101020213 has 2 divisors, whose sum is σ = 1101020214. Its totient is φ = 1101020212.

The previous prime is 1101020209. The next prime is 1101020233. The reversal of 1101020213 is 3120201011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1012321489 + 88698724 = 31817^2 + 9418^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101020213 - 2² = 1101020209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1101020194 and 1101020203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1101020233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550510106 + 550510107.

It is an arithmetic number, because the mean of its divisors is an integer number (550510107).

Almost surely, 2^1101020213 is an apocalyptic number.

It is an amenable number.

1101020213 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101020213 is an equidigital number, since it uses as much as digits as its factorization.

1101020213 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 1101020213 is about 33181.6246287007. The cubic root of 1101020213 is about 1032.5991518731.

Adding to 1101020213 its reverse (3120201011), we get a palindrome (4221221224).

The spelling of 1101020213 in words is "one billion, one hundred one million, twenty thousand, two hundred thirteen".