31561313314 has 8 divisors (see below), whose sum is σ = 50126791788. Its totient is φ = 14852382720.

The previous prime is 31561313309. The next prime is 31561313323. The reversal of 31561313314 is 41331316513.

It can be written as a sum of positive squares in 2 ways, for example, as 29750385289 + 1810928025 = 172483^2 + 42555^2 .

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

It is a super-2 number, since 2×31561313314² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 464136927 + ... + 464136994.

Almost surely, 2^31561313314 is an apocalyptic number.

31561313314 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

31561313314 is a deficient number, since it is larger than the sum of its proper divisors (18565478474).

31561313314 is a wasteful number, since it uses less digits than its factorization.

31561313314 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 928273940.

The product of its digits is 9720, while the sum is 31.

Adding to 31561313314 its reverse (41331316513), we get a palindrome (72892629827).

The spelling of 31561313314 in words is "thirty-one billion, five hundred sixty-one million, three hundred thirteen thousand, three hundred fourteen".