31031140422 has 8 divisors (see below), whose sum is σ = 62062280856. Its totient is φ = 10343713472.

The previous prime is 31031140381. The next prime is 31031140433. The reversal of 31031140422 is 22404113013.

It is a sphenic number, since it is the product of 3 distinct primes.

31031140422 is an admirable number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2585928363 + ... + 2585928374.

It is an arithmetic number, because the mean of its divisors is an integer number (7757785107).

Almost surely, 2^31031140422 is an apocalyptic number.

31031140422 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

31031140422 is a wasteful number, since it uses less digits than its factorization.

31031140422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171856742.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31031140422 its reverse (22404113013), we get a palindrome (53435253435).

The spelling of 31031140422 in words is "thirty-one billion, thirty-one million, one hundred forty thousand, four hundred twenty-two".