102302031 has 32 divisors (see below), whose sum is σ = 153280512. Its totient is φ = 60278400.

The previous prime is 102302017. The next prime is 102302041. The reversal of 102302031 is 130203201.

It is a happy number.

It is not a de Polignac number, because 102302031 - 2¹⁰ = 102301007 is a prime.

It is a super-2 number, since 2×102302031² = 20931411093449922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102301998 and 102302016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102302041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88306 + ... + 89456.

It is an arithmetic number, because the mean of its divisors is an integer number (4790016).

Almost surely, 2^102302031 is an apocalyptic number.

102302031 is a deficient number, since it is larger than the sum of its proper divisors (50978481).

102302031 is a wasteful number, since it uses less digits than its factorization.

102302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1263.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 102302031 is about 10114.4466482354. The cubic root of 102302031 is about 467.6935909796.

Adding to 102302031 its reverse (130203201), we get a palindrome (232505232).

The spelling of 102302031 in words is "one hundred two million, three hundred two thousand, thirty-one".