31142330401 has 16 divisors (see below), whose sum is σ = 38364084864. Its totient is φ = 24617545344.

The previous prime is 31142330389. The next prime is 31142330407. The reversal of 31142330401 is 10403324113.

It is not a de Polignac number, because 31142330401 - 2¹⁷ = 31142199329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31142330407) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56155 + ... + 255808.

It is an arithmetic number, because the mean of its divisors is an integer number (2397755304).

Almost surely, 2^31142330401 is an apocalyptic number.

It is an amenable number.

31142330401 is a deficient number, since it is larger than the sum of its proper divisors (7221754463).

31142330401 is a wasteful number, since it uses less digits than its factorization.

31142330401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 313080.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31142330401 its reverse (10403324113), we get a palindrome (41545654514).

The spelling of 31142330401 in words is "thirty-one billion, one hundred forty-two million, three hundred thirty thousand, four hundred one".