202102103340 has 72 divisors (see below), whose sum is σ = 649104412320. Its totient is φ = 50723664384.

The previous prime is 202102103339. The next prime is 202102103347. The reversal of 202102103340 is 43301201202.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (202102103347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33020160 + ... + 33026279.

It is an arithmetic number, because the mean of its divisors is an integer number (9015339060).

Almost surely, 2^202102103340 is an apocalyptic number.

202102103340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

202102103340 is an abundant number, since it is smaller than the sum of its proper divisors (447002308980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

202102103340 is a wasteful number, since it uses less digits than its factorization.

202102103340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66046471 (or 66046466 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 202102103340 its reverse (43301201202), we get a palindrome (245403304542).

The spelling of 202102103340 in words is "two hundred two billion, one hundred two million, one hundred three thousand, three hundred forty".