1031123642 has 16 divisors (see below), whose sum is σ = 1567503360. Its totient is φ = 508633008.

The previous prime is 1031123633. The next prime is 1031123669. The reversal of 1031123642 is 2463211301.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 347228 + ... + 350184.

It is an arithmetic number, because the mean of its divisors is an integer number (97968960).

Almost surely, 2^1031123642 is an apocalyptic number.

1031123642 is a deficient number, since it is larger than the sum of its proper divisors (536379718).

1031123642 is a wasteful number, since it uses less digits than its factorization.

1031123642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5245.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 1031123642 is about 32111.1139950018. The cubic root of 1031123642 is about 1010.2687393887.

Adding to 1031123642 its reverse (2463211301), we get a palindrome (3494334943).

The spelling of 1031123642 in words is "one billion, thirty-one million, one hundred twenty-three thousand, six hundred forty-two".