31121421314 has 8 divisors (see below), whose sum is σ = 49428139788. Its totient is φ = 14645374720.

The previous prime is 31121421277. The next prime is 31121421319. The reversal of 31121421314 is 41312412113.

It can be written as a sum of positive squares in 2 ways, for example, as 28302342289 + 2819079025 = 168233^2 + 53095^2 .

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

It is a self number, because there is not a number n which added to its sum of digits gives 31121421314.

It is not an unprimeable number, because it can be changed into a prime (31121421319) 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 in 3 ways as a sum of consecutive naturals, for example, 457667927 + ... + 457667994.

Almost surely, 2^31121421314 is an apocalyptic number.

31121421314 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31121421314 is a deficient number, since it is larger than the sum of its proper divisors (18306718474).

31121421314 is a wasteful number, since it uses less digits than its factorization.

31121421314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 915335940.

The product of its digits is 576, while the sum is 23.

Adding to 31121421314 its reverse (41312412113), we get a palindrome (72433833427).

The spelling of 31121421314 in words is "thirty-one billion, one hundred twenty-one million, four hundred twenty-one thousand, three hundred fourteen".