202103100309 has 16 divisors (see below), whose sum is σ = 294073381440. Its totient is φ = 122442879360.

The previous prime is 202103100293. The next prime is 202103100317. The reversal of 202103100309 is 903001301202.

It is a happy number.

It is not a de Polignac number, because 202103100309 - 2⁴ = 202103100293 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202103102309) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1002504 + ... + 1187105.

It is an arithmetic number, because the mean of its divisors is an integer number (18379586340).

Almost surely, 2^202103100309 is an apocalyptic number.

It is an amenable number.

202103100309 is a deficient number, since it is larger than the sum of its proper divisors (91970281131).

202103100309 is a wasteful number, since it uses less digits than its factorization.

202103100309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2192420.

The product of its (nonzero) digits is 324, while the sum is 21.

The spelling of 202103100309 in words is "two hundred two billion, one hundred three million, one hundred thousand, three hundred nine".