31322110042 has 4 divisors (see below), whose sum is σ = 46983165066. Its totient is φ = 15661055020.

The previous prime is 31322109997. The next prime is 31322110049. The reversal of 31322110042 is 24001122313.

It is a happy number.

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., 21623996601 + 9698113441 = 147051^2 + 98479^2 .

It is not an unprimeable number, because it can be changed into a prime (31322110049) 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 as a sum of consecutive naturals, namely, 7830527509 + ... + 7830527512.

Almost surely, 2^31322110042 is an apocalyptic number.

31322110042 is a deficient number, since it is larger than the sum of its proper divisors (15661055024).

31322110042 is a wasteful number, since it uses less digits than its factorization.

31322110042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15661055023.

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

Adding to 31322110042 its reverse (24001122313), we get a palindrome (55323232355).

The spelling of 31322110042 in words is "thirty-one billion, three hundred twenty-two million, one hundred ten thousand, forty-two".