920020213 has 4 divisors (see below), whose sum is σ = 1051451680. Its totient is φ = 788588748.

The previous prime is 920020187. The next prime is 920020219. The reversal of 920020213 is 312020029.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 920020213 - 2⁵ = 920020181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (920020219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65715723 + ... + 65715736.

It is an arithmetic number, because the mean of its divisors is an integer number (262862920).

Almost surely, 2^920020213 is an apocalyptic number.

It is an amenable number.

920020213 is a deficient number, since it is larger than the sum of its proper divisors (131431467).

920020213 is a wasteful number, since it uses less digits than its factorization.

920020213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131431466.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 920020213 is about 30331.8349758138. The cubic root of 920020213 is about 972.5959489703.

The spelling of 920020213 in words is "nine hundred twenty million, twenty thousand, two hundred thirteen".