31411423313 has 4 divisors (see below), whose sum is σ = 31412174388. Its totient is φ = 31410672240.

The previous prime is 31411423301. The next prime is 31411423391. The reversal of 31411423313 is 31332411413.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 31332411413 = 443 ⋅70727791.

It can be written as a sum of positive squares in 2 ways, for example, as 11593259584 + 19818163729 = 107672^2 + 140777^2 .

It is a cyclic number.

It is not a de Polignac number, because 31411423313 - 2⁴ = 31411423297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (31411423613) 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, 308858 + ... + 397763.

It is an arithmetic number, because the mean of its divisors is an integer number (7853043597).

Almost surely, 2^31411423313 is an apocalyptic number.

It is an amenable number.

31411423313 is a deficient number, since it is larger than the sum of its proper divisors (751075).

31411423313 is an equidigital number, since it uses as much as digits as its factorization.

31411423313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 751074.

The product of its digits is 2592, while the sum is 26.

Adding to 31411423313 its reverse (31332411413), we get a palindrome (62743834726).

The spelling of 31411423313 in words is "thirty-one billion, four hundred eleven million, four hundred twenty-three thousand, three hundred thirteen".