203033400145 has 32 divisors (see below), whose sum is σ = 259546208256. Its totient is φ = 151940659200.

The previous prime is 203033400133. The next prime is 203033400203. The reversal of 203033400145 is 541004330302.

It is not a de Polignac number, because 203033400145 - 2¹⁵ = 203033367377 is a prime.

It is a Duffinian number.

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, 21441702 + ... + 21451168.

It is an arithmetic number, because the mean of its divisors is an integer number (8110819008).

Almost surely, 2^203033400145 is an apocalyptic number.

It is an amenable number.

203033400145 is a deficient number, since it is larger than the sum of its proper divisors (56512808111).

203033400145 is a wasteful number, since it uses less digits than its factorization.

203033400145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11001.

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 203033400145 its reverse (541004330302), we get a palindrome (744037730447).

The spelling of 203033400145 in words is "two hundred three billion, thirty-three million, four hundred thousand, one hundred forty-five".