31421301344 has 12 divisors (see below), whose sum is σ = 61860687084. Its totient is φ = 15710650656.

The previous prime is 31421301313. The next prime is 31421301347. The reversal of 31421301344 is 44310312413.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31421301347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490957802 + ... + 490957865.

It is an arithmetic number, because the mean of its divisors is an integer number (5155057257).

Almost surely, 2^31421301344 is an apocalyptic number.

It is an amenable number.

31421301344 is a deficient number, since it is larger than the sum of its proper divisors (30439385740).

31421301344 is an equidigital number, since it uses as much as digits as its factorization.

31421301344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 981915677 (or 981915669 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31421301344 its reverse (44310312413), we get a palindrome (75731613757).

The spelling of 31421301344 in words is "thirty-one billion, four hundred twenty-one million, three hundred one thousand, three hundred forty-four".