203450693101 has 4 divisors (see below), whose sum is σ = 203488423452. Its totient is φ = 203412962752.

The previous prime is 203450693099. The next prime is 203450693111. The reversal of 203450693101 is 101396054302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 101396054302 = 2 ⋅50698027151.

It can be written as a sum of positive squares in 2 ways, for example, as 199447094025 + 4003599076 = 446595^2 + 63274^2 .

It is a cyclic number.

It is not a de Polignac number, because 203450693101 - 2¹ = 203450693099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203450693111) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18857086 + ... + 18867871.

It is an arithmetic number, because the mean of its divisors is an integer number (50872105863).

Almost surely, 2^203450693101 is an apocalyptic number.

It is an amenable number.

203450693101 is a deficient number, since it is larger than the sum of its proper divisors (37730351).

203450693101 is an equidigital number, since it uses as much as digits as its factorization.

203450693101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37730350.

The product of its (nonzero) digits is 19440, while the sum is 34.

The spelling of 203450693101 in words is "two hundred three billion, four hundred fifty million, six hundred ninety-three thousand, one hundred one".