102203031 has 32 divisors (see below), whose sum is σ = 165570048. Its totient is φ = 54743040.

The previous prime is 102203029. The next prime is 102203041. The reversal of 102203031 is 130302201.

It is a happy number.

It is not a de Polignac number, because 102203031 - 2¹ = 102203029 is a prime.

It is a super-2 number, since 2×102203031² = 20890919091173922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102202998 and 102203016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203041) 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 31 ways as a sum of consecutive naturals, for example, 125616 + ... + 126426.

It is an arithmetic number, because the mean of its divisors is an integer number (5174064).

Almost surely, 2^102203031 is an apocalyptic number.

102203031 is a deficient number, since it is larger than the sum of its proper divisors (63367017).

102203031 is a wasteful number, since it uses less digits than its factorization.

102203031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1191.

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

The square root of 102203031 is about 10109.5514737302. The cubic root of 102203031 is about 467.5426763828.

Adding to 102203031 its reverse (130302201), we get a palindrome (232505232).

The spelling of 102203031 in words is "one hundred two million, two hundred three thousand, thirty-one".