203652242130 has 64 divisors (see below), whose sum is σ = 510315033600. Its totient is φ = 51915627456.

The previous prime is 203652242113. The next prime is 203652242191. The reversal of 203652242130 is 31242256302.

It is a super-2 number, since 2×203652242130² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1103221 + ... + 1274519.

It is an arithmetic number, because the mean of its divisors is an integer number (7973672400).

Almost surely, 2^203652242130 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203652242130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (255157516800).

203652242130 is an abundant number, since it is smaller than the sum of its proper divisors (306662791470).

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

203652242130 is a wasteful number, since it uses less digits than its factorization.

203652242130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173055.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 203652242130 its reverse (31242256302), we get a palindrome (234894498432).

The spelling of 203652242130 in words is "two hundred three billion, six hundred fifty-two million, two hundred forty-two thousand, one hundred thirty".