31041103042 has 4 divisors (see below), whose sum is σ = 46561654566. Its totient is φ = 15520551520.

The previous prime is 31041103013. The next prime is 31041103043. The reversal of 31041103042 is 24030114013.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 20730528361 + 10310574681 = 143981^2 + 101541^2 .

It is not an unprimeable number, because it can be changed into a prime (31041103043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7760275759 + ... + 7760275762.

Almost surely, 2^31041103042 is an apocalyptic number.

31041103042 is a deficient number, since it is larger than the sum of its proper divisors (15520551524).

31041103042 is a wasteful number, since it uses less digits than its factorization.

31041103042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15520551523.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 31041103042 its reverse (24030114013), we get a palindrome (55071217055).

The spelling of 31041103042 in words is "thirty-one billion, forty-one million, one hundred three thousand, forty-two".