85403203213 has 4 divisors (see below), whose sum is σ = 85465954908. Its totient is φ = 85340451520.

The previous prime is 85403203211. The next prime is 85403203253. The reversal of 85403203213 is 31230230458.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 21986365284 + 63416837929 = 148278^2 + 251827^2 .

It is a cyclic number.

It is not a de Polignac number, because 85403203213 - 2¹ = 85403203211 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 (85403203211) 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, 31373806 + ... + 31376527.

It is an arithmetic number, because the mean of its divisors is an integer number (21366488727).

Almost surely, 2^85403203213 is an apocalyptic number.

It is an amenable number.

85403203213 is a deficient number, since it is larger than the sum of its proper divisors (62751695).

85403203213 is a wasteful number, since it uses less digits than its factorization.

85403203213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62751694.

The product of its (nonzero) digits is 17280, while the sum is 31.

The spelling of 85403203213 in words is "eighty-five billion, four hundred three million, two hundred three thousand, two hundred thirteen".