203465142420 has 48 divisors (see below), whose sum is σ = 594472072320. Its totient is φ = 51898354816.

The previous prime is 203465142343. The next prime is 203465142427. The reversal of 203465142420 is 24241564302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203465142427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73717875 + ... + 73720634.

It is an arithmetic number, because the mean of its divisors is an integer number (12384834840).

Almost surely, 2^203465142420 is an apocalyptic number.

203465142420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203465142420 is an abundant number, since it is smaller than the sum of its proper divisors (391006929900).

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

203465142420 is a wasteful number, since it uses less digits than its factorization.

203465142420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147438544 (or 147438542 counting only the distinct ones).

The product of its (nonzero) digits is 46080, while the sum is 33.

The spelling of 203465142420 in words is "two hundred three billion, four hundred sixty-five million, one hundred forty-two thousand, four hundred twenty".