1105310631 has 4 divisors (see below), whose sum is σ = 1473747512. Its totient is φ = 736873752.

The previous prime is 1105310623. The next prime is 1105310651. The reversal of 1105310631 is 1360135011.

1105310631 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1105310631 - 2³ = 1105310623 is a prime.

It is a super-2 number, since 2×1105310631² = 2443423182003236322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1105310598 and 1105310607.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1105310621) 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, 184218436 + ... + 184218441.

It is an arithmetic number, because the mean of its divisors is an integer number (368436878).

Almost surely, 2^1105310631 is an apocalyptic number.

1105310631 is a deficient number, since it is larger than the sum of its proper divisors (368436881).

1105310631 is an equidigital number, since it uses as much as digits as its factorization.

1105310631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368436880.

The product of its (nonzero) digits is 270, while the sum is 21.

The square root of 1105310631 is about 33246.2122804990. The cubic root of 1105310631 is about 1033.9386791500.

Adding to 1105310631 its reverse (1360135011), we get a palindrome (2465445642).

The spelling of 1105310631 in words is "one billion, one hundred five million, three hundred ten thousand, six hundred thirty-one".