31111004341 has 4 divisors (see below), whose sum is σ = 31111494732. Its totient is φ = 31110513952.

The previous prime is 31111004329. The next prime is 31111004357. The reversal of 31111004341 is 14340011113.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 14340011113 = 19 ⋅754737427.

It can be written as a sum of positive squares in 2 ways, for example, as 1736472241 + 29374532100 = 41671^2 + 171390^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31111004341 is a prime.

It is a super-2 number, since 2×31111004341² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31111004321) 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, 132886 + ... + 282631.

It is an arithmetic number, because the mean of its divisors is an integer number (7777873683).

Almost surely, 2^31111004341 is an apocalyptic number.

It is an amenable number.

31111004341 is a deficient number, since it is larger than the sum of its proper divisors (490391).

31111004341 is an equidigital number, since it uses as much as digits as its factorization.

31111004341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 490390.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 31111004341 its reverse (14340011113), we get a palindrome (45451015454).

The spelling of 31111004341 in words is "thirty-one billion, one hundred eleven million, four thousand, three hundred forty-one".