1031320105 has 8 divisors (see below), whose sum is σ = 1238811912. Its totient is φ = 824237568.

The previous prime is 1031320099. The next prime is 1031320111. The reversal of 1031320105 is 5010231301.

It is an interprime number because it is at equal distance from previous prime (1031320099) and next prime (1031320111).

It can be written as a sum of positive squares in 4 ways, for example, as 14220441 + 1017099664 = 3771^2 + 31892^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 1031320105 - 2³ = 1031320097 is a prime.

It is a super-2 number, since 2×1031320105² = 2127242317954422050, which contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96744 + ... + 106873.

It is an arithmetic number, because the mean of its divisors is an integer number (154851489).

Almost surely, 2^1031320105 is an apocalyptic number.

It is an amenable number.

1031320105 is a deficient number, since it is larger than the sum of its proper divisors (207491807).

1031320105 is a wasteful number, since it uses less digits than its factorization.

1031320105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204635.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 1031320105 is about 32114.1729614823. The cubic root of 1031320105 is about 1010.3328984656.

Adding to 1031320105 its reverse (5010231301), we get a palindrome (6041551406).

The spelling of 1031320105 in words is "one billion, thirty-one million, three hundred twenty thousand, one hundred five".