203972223890 has 16 divisors (see below), whose sum is σ = 376104881880. Its totient is φ = 79598916480.

The previous prime is 203972223839. The next prime is 203972223899. The reversal of 203972223890 is 98322279302.

It can be written as a sum of positive squares in 4 ways, for example, as 136967348281 + 67004875609 = 370091^2 + 258853^2 .

It is not an unprimeable number, because it can be changed into a prime (203972223899) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 248746205 + ... + 248747024.

Almost surely, 2^203972223890 is an apocalyptic number.

203972223890 is a deficient number, since it is larger than the sum of its proper divisors (172132657990).

203972223890 is a wasteful number, since it uses less digits than its factorization.

203972223890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 497493277.

The product of its (nonzero) digits is 653184, while the sum is 47.

The spelling of 203972223890 in words is "two hundred three billion, nine hundred seventy-two million, two hundred twenty-three thousand, eight hundred ninety".