203434130 has 16 divisors (see below), whose sum is σ = 378808920. Its totient is φ = 78567552.

The previous prime is 203434129. The next prime is 203434151. The reversal of 203434130 is 31434302.

It can be written as a sum of positive squares in 4 ways, for example, as 200533921 + 2900209 = 14161^2 + 1703^2 .

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, 350459 + ... + 351038.

Almost surely, 2^203434130 is an apocalyptic number.

203434130 is a deficient number, since it is larger than the sum of its proper divisors (175374790).

203434130 is a wasteful number, since it uses less digits than its factorization.

203434130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 701533.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 203434130 is about 14263.0336885250. The cubic root of 203434130 is about 588.1317230770.

Adding to 203434130 its reverse (31434302), we get a palindrome (234868432).

The spelling of 203434130 in words is "two hundred three million, four hundred thirty-four thousand, one hundred thirty".