1000031142 has 32 divisors (see below), whose sum is σ = 2296725120. Its totient is φ = 287089920.

The previous prime is 1000031141. The next prime is 1000031143. The reversal of 1000031142 is 2411300001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (1000031141) and next prime (1000031143).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000031141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 397483 + ... + 399990.

It is an arithmetic number, because the mean of its divisors is an integer number (71772660).

Almost surely, 2^1000031142 is an apocalyptic number.

1000031142 is an abundant number, since it is smaller than the sum of its proper divisors (1296693978).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1000031142 is a wasteful number, since it uses less digits than its factorization.

1000031142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 797508.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1000031142 is about 31623.2689961048. The cubic root of 1000031142 is about 1000.0103805589.

Adding to 1000031142 its reverse (2411300001), we get a palindrome (3411331143).

The spelling of 1000031142 in words is "one billion, thirty-one thousand, one hundred forty-two".