203112140202 has 12 divisors (see below), whose sum is σ = 440076303810. Its totient is φ = 67704046728.

The previous prime is 203112140111. The next prime is 203112140233. The reversal of 203112140202 is 202041211302.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 197010811881 + 6101328321 = 443859^2 + 78111^2 .

It is a Harshad number since it is a multiple of its sum of digits (18), and also a Moran number because the ratio is a prime number: 11284007789 = 203112140202 / (2 + 0 + 3 + 1 + 1 + 2 + 1 + 4 + 0 + 2 + 0 + 2).

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5642003877 + ... + 5642003912.

Almost surely, 2^203112140202 is an apocalyptic number.

203112140202 is an abundant number, since it is smaller than the sum of its proper divisors (236964163608).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

203112140202 is a wasteful number, since it uses less digits than its factorization.

203112140202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11284007797 (or 11284007794 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 203112140202 its reverse (202041211302), we get a palindrome (405153351504).

The spelling of 203112140202 in words is "two hundred three billion, one hundred twelve million, one hundred forty thousand, two hundred two".