31430222041 has 4 divisors (see below), whose sum is σ = 31450752784. Its totient is φ = 31409691300.

The previous prime is 31430221981. The next prime is 31430222053. The reversal of 31430222041 is 14022203413.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31430222041 - 2¹⁷ = 31430090969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31430222441) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10263075 + ... + 10266136.

It is an arithmetic number, because the mean of its divisors is an integer number (7862688196).

Almost surely, 2^31430222041 is an apocalyptic number.

It is an amenable number.

31430222041 is a deficient number, since it is larger than the sum of its proper divisors (20530743).

31430222041 is a wasteful number, since it uses less digits than its factorization.

31430222041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20530742.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 31430222041 its reverse (14022203413), we get a palindrome (45452425454).

The spelling of 31430222041 in words is "thirty-one billion, four hundred thirty million, two hundred twenty-two thousand, forty-one".