1240203204434 has 8 divisors (see below), whose sum is σ = 1899885760128. Its totient is φ = 606907951060.

The previous prime is 1240203204421. The next prime is 1240203204437. The reversal of 1240203204434 is 4344023020421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 1240203204397 and 1240203204406.

It is not an unprimeable number, because it can be changed into a prime (1240203204437) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 6596825462 + ... + 6596825649.

It is an arithmetic number, because the mean of its divisors is an integer number (237485720016).

Almost surely, 2^{1240203204434} is an apocalyptic number.

1240203204434 is a deficient number, since it is larger than the sum of its proper divisors (659682555694).

1240203204434 is a wasteful number, since it uses less digits than its factorization.

1240203204434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13193651160.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 1240203204434 its reverse (4344023020421), we get a palindrome (5584226224855).

The spelling of 1240203204434 in words is "one trillion, two hundred forty billion, two hundred three million, two hundred four thousand, four hundred thirty-four".