1031360561 has 12 divisors (see below), whose sum is σ = 1295594496. Its totient is φ = 803656920.

The previous prime is 1031360537. The next prime is 1031360581. The reversal of 1031360561 is 1650631301.

1031360561 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1031360561 - 2⁶ = 1031360497 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1031360561.

It is not an unprimeable number, because it can be changed into a prime (1031360521) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 607985 + ... + 609678.

It is an arithmetic number, because the mean of its divisors is an integer number (107966208).

Almost surely, 2^1031360561 is an apocalyptic number.

1031360561 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1031360561 is a deficient number, since it is larger than the sum of its proper divisors (264233935).

1031360561 is a wasteful number, since it uses less digits than its factorization.

1031360561 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217692 (or 1217681 counting only the distinct ones).

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

The square root of 1031360561 is about 32114.8028329616. The cubic root of 1031360561 is about 1010.3461092017.

Adding to 1031360561 its reverse (1650631301), we get a palindrome (2681991862).

The spelling of 1031360561 in words is "one billion, thirty-one million, three hundred sixty thousand, five hundred sixty-one".