20131011042 has 16 divisors (see below), whose sum is σ = 40279654272. Its totient is φ = 6707398320.

The previous prime is 20131011031. The next prime is 20131011049. The reversal of 20131011042 is 24011013102.

It is not an unprimeable number, because it can be changed into a prime (20131011049) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 719809 + ... + 747252.

It is an arithmetic number, because the mean of its divisors is an integer number (2517478392).

Almost surely, 2^20131011042 is an apocalyptic number.

20131011042 is an abundant number, since it is smaller than the sum of its proper divisors (20148643230).

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

20131011042 is a wasteful number, since it uses less digits than its factorization.

20131011042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1469353.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 20131011042 its reverse (24011013102), we get a palindrome (44142024144).

The spelling of 20131011042 in words is "twenty billion, one hundred thirty-one million, eleven thousand, forty-two".