102031042 has 32 divisors (see below), whose sum is σ = 169256304. Its totient is φ = 45926400.

The previous prime is 102031037. The next prime is 102031043. The reversal of 102031042 is 240130201.

It can be written as a sum of positive squares in 8 ways, for example, as 46662561 + 55368481 = 6831^2 + 7441^2 .

It is a super-3 number, since 3×102031042³ (a number of 25 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (102031043) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73192 + ... + 74572.

Almost surely, 2^102031042 is an apocalyptic number.

102031042 is a deficient number, since it is larger than the sum of its proper divisors (67225262).

102031042 is a wasteful number, since it uses less digits than its factorization.

102031042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1494.

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 102031042 is about 10101.0416294558. The cubic root of 102031042 is about 467.2802662073.

Adding to 102031042 its reverse (240130201), we get a palindrome (342161243).

The spelling of 102031042 in words is "one hundred two million, thirty-one thousand, forty-two".