203112322220040 has 32 divisors (see below), whose sum is σ = 609336966660480. Its totient is φ = 54163285925312.

The previous prime is 203112322220009. The next prime is 203112322220077. The reversal of 203112322220040 is 40022223211302.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 846301342464 + ... + 846301342703.

It is an arithmetic number, because the mean of its divisors is an integer number (19041780208140).

Almost surely, 2^{203112322220040} is an apocalyptic number.

203112322220040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203112322220040 is an abundant number, since it is smaller than the sum of its proper divisors (406224644440440).

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

203112322220040 is a wasteful number, since it uses less digits than its factorization.

203112322220040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1692602685181 (or 1692602685177 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203112322220040 its reverse (40022223211302), we get a palindrome (243134545431342).

The spelling of 203112322220040 in words is "two hundred three trillion, one hundred twelve billion, three hundred twenty-two million, two hundred twenty thousand, forty".