202120030245 has 32 divisors (see below), whose sum is σ = 369732642048. Its totient is φ = 92362295808.

The previous prime is 202120030241. The next prime is 202120030249. The reversal of 202120030245 is 542030021202.

202120030245 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (202120030241) and next prime (202120030249).

It is not a de Polignac number, because 202120030245 - 2² = 202120030241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202120030241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 92994 + ... + 642563.

It is an arithmetic number, because the mean of its divisors is an integer number (11554145064).

Almost surely, 2^202120030245 is an apocalyptic number.

It is an amenable number.

202120030245 is a deficient number, since it is larger than the sum of its proper divisors (167612611803).

202120030245 is a wasteful number, since it uses less digits than its factorization.

202120030245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 738189.

The product of its (nonzero) digits is 960, while the sum is 21.

Adding to 202120030245 its reverse (542030021202), we get a palindrome (744150051447).

The spelling of 202120030245 in words is "two hundred two billion, one hundred twenty million, thirty thousand, two hundred forty-five".