203402140230 has 16 divisors (see below), whose sum is σ = 488165136624. Its totient is φ = 54240570720.

The previous prime is 203402140223. The next prime is 203402140261. The reversal of 203402140230 is 32041204302.

It is a junction number, because it is equal to n+sod(n) for n = 203402140197 and 203402140206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3390035641 + ... + 3390035700.

It is an arithmetic number, because the mean of its divisors is an integer number (30510321039).

Almost surely, 2^203402140230 is an apocalyptic number.

203402140230 is an abundant number, since it is smaller than the sum of its proper divisors (284762996394).

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

203402140230 is a wasteful number, since it uses less digits than its factorization.

203402140230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6780071351.

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 203402140230 its reverse (32041204302), we get a palindrome (235443344532).

The spelling of 203402140230 in words is "two hundred three billion, four hundred two million, one hundred forty thousand, two hundred thirty".