501403131042 has 32 divisors (see below), whose sum is σ = 1158321674304. Its totient is φ = 143002675200.

The previous prime is 501403131037. The next prime is 501403131043. The reversal of 501403131042 is 240131304105.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (501403131043) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 223440559 + ... + 223442802.

It is an arithmetic number, because the mean of its divisors is an integer number (36197552322).

Almost surely, 2^501403131042 is an apocalyptic number.

501403131042 is an abundant number, since it is smaller than the sum of its proper divisors (656918543262).

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

501403131042 is a wasteful number, since it uses less digits than its factorization.

501403131042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 446883394.

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 501403131042 its reverse (240131304105), we get a palindrome (741534435147).

The spelling of 501403131042 in words is "five hundred one billion, four hundred three million, one hundred thirty-one thousand, forty-two".