503031400042 has 16 divisors (see below), whose sum is σ = 760429764000. Its totient is φ = 249560640432.

The previous prime is 503031400037. The next prime is 503031400049. The reversal of 503031400042 is 240004130305.

It is a junction number, because it is equal to n+sod(n) for n = 503031399986 and 503031400022.

It is not an unprimeable number, because it can be changed into a prime (503031400049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1284108 + ... + 1629415.

It is an arithmetic number, because the mean of its divisors is an integer number (47526860250).

Almost surely, 2^503031400042 is an apocalyptic number.

503031400042 is a deficient number, since it is larger than the sum of its proper divisors (257398363958).

503031400042 is a wasteful number, since it uses less digits than its factorization.

503031400042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2914197.

The product of its (nonzero) digits is 1440, while the sum is 22.

Adding to 503031400042 its reverse (240004130305), we get a palindrome (743035530347).

The spelling of 503031400042 in words is "five hundred three billion, thirty-one million, four hundred thousand, forty-two".