203245443120451 has 16 divisors (see below), whose sum is σ = 215693890675200. Its totient is φ = 190851984102528.

The previous prime is 203245443120371. The next prime is 203245443120479. The reversal of 203245443120451 is 154021344542302.

203245443120451 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 203245443120451 - 2³³ = 203236853185859 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203245443120151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24800080 + ... + 31961458.

It is an arithmetic number, because the mean of its divisors is an integer number (13480868167200).

Almost surely, 2^{203245443120451} is an apocalyptic number.

203245443120451 is a deficient number, since it is larger than the sum of its proper divisors (12448447554749).

203245443120451 is a wasteful number, since it uses less digits than its factorization.

203245443120451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7165218.

The product of its (nonzero) digits is 460800, while the sum is 40.

Adding to 203245443120451 its reverse (154021344542302), we get a palindrome (357266787662753).

The spelling of 203245443120451 in words is "two hundred three trillion, two hundred forty-five billion, four hundred forty-three million, one hundred twenty thousand, four hundred fifty-one".