31411351313 has 4 divisors (see below), whose sum is σ = 31880177520. Its totient is φ = 30942525108.

The previous prime is 31411351303. The next prime is 31411351327. The reversal of 31411351313 is 31315311413.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31315311413 = 79 ⋅396396347.

It is a cyclic number.

It is not a de Polignac number, because 31411351313 - 2¹⁶ = 31411285777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31411351303) 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, 234413003 + ... + 234413136.

It is an arithmetic number, because the mean of its divisors is an integer number (7970044380).

Almost surely, 2^31411351313 is an apocalyptic number.

It is an amenable number.

31411351313 is a deficient number, since it is larger than the sum of its proper divisors (468826207).

31411351313 is an equidigital number, since it uses as much as digits as its factorization.

31411351313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 468826206.

The product of its digits is 1620, while the sum is 26.

Adding to 31411351313 its reverse (31315311413), we get a palindrome (62726662726).

The spelling of 31411351313 in words is "thirty-one billion, four hundred eleven million, three hundred fifty-one thousand, three hundred thirteen".