203452278120 has 640 divisors, whose sum is σ = 849629088000. Its totient is φ = 42518421504.

The previous prime is 203452278109. The next prime is 203452278163. The reversal of 203452278120 is 21872254302.

203452278120 is a `hidden beast` number, since 2 + 0 + 3 + 4 + 522 + 7 + 8 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 31544656 + ... + 31551104.

It is an arithmetic number, because the mean of its divisors is an integer number (1327545450).

Almost surely, 2^203452278120 is an apocalyptic number.

203452278120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203452278120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (424814544000).

203452278120 is an abundant number, since it is smaller than the sum of its proper divisors (646176809880).

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

203452278120 is a wasteful number, since it uses less digits than its factorization.

203452278120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6599 (or 6586 counting only the distinct ones).

The product of its (nonzero) digits is 53760, while the sum is 36.

The spelling of 203452278120 in words is "two hundred three billion, four hundred fifty-two million, two hundred seventy-eight thousand, one hundred twenty".