203424310032240 has 160 divisors (see below), whose sum is σ = 687957034003200. Its totient is φ = 49314052085760.

The previous prime is 203424310032191. The next prime is 203424310032271. The reversal of 203424310032240 is 42230013424302.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a junction number, because it is equal to n+sod(n) for n = 203424310032198 and 203424310032207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144443796 + ... + 145845324.

It is an arithmetic number, because the mean of its divisors is an integer number (4299731462520).

Almost surely, 2^{203424310032240} is an apocalyptic number.

203424310032240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203424310032240 is an abundant number, since it is smaller than the sum of its proper divisors (484532723970960).

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

203424310032240 is a wasteful number, since it uses less digits than its factorization.

203424310032240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456535 (or 1456529 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 30.

Adding to 203424310032240 its reverse (42230013424302), we get a palindrome (245654323456542).

The spelling of 203424310032240 in words is "two hundred three trillion, four hundred twenty-four billion, three hundred ten million, thirty-two thousand, two hundred forty".