203442193152 has 324 divisors, whose sum is σ = 661285831752. Its totient is φ = 59653324800.

The previous prime is 203442193139. The next prime is 203442193153. The reversal of 203442193152 is 251391244302.

203442193152 is a `hidden beast` number, since 20 + 3 + 442 + 193 + 1 + 5 + 2 = 666.

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

It is not an unprimeable number, because it can be changed into a prime (203442193153) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 24351408 + ... + 24359760.

Almost surely, 2^203442193152 is an apocalyptic number.

203442193152 is a gapful number since it is divisible by the number (22) 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 203442193152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (330642915876).

203442193152 is an abundant number, since it is smaller than the sum of its proper divisors (457843638600).

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

203442193152 is a wasteful number, since it uses less digits than its factorization.

203442193152 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8448 (or 8400 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 36.

The spelling of 203442193152 in words is "two hundred three billion, four hundred forty-two million, one hundred ninety-three thousand, one hundred fifty-two".