203145051020 has 24 divisors (see below), whose sum is σ = 426631989168. Its totient is φ = 81252804800.

The previous prime is 203145051017. The next prime is 203145051061. The reversal of 203145051020 is 20150541302.

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, 1430 + ... + 637410.

It is an arithmetic number, because the mean of its divisors is an integer number (17776332882).

Almost surely, 2^203145051020 is an apocalyptic number.

203145051020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203145051020 is an abundant number, since it is smaller than the sum of its proper divisors (223486938148).

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

203145051020 is a wasteful number, since it uses less digits than its factorization.

203145051020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651961 (or 651959 counting only the distinct ones).

The product of its (nonzero) digits is 1200, while the sum is 23.

Adding to 203145051020 its reverse (20150541302), we get a palindrome (223295592322).

The spelling of 203145051020 in words is "two hundred three billion, one hundred forty-five million, fifty-one thousand, twenty".