102203431 has 8 divisors (see below), whose sum is σ = 113022864. Its totient is φ = 91638720.

The previous prime is 102203429. The next prime is 102203443. The reversal of 102203431 is 134302201.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 102203431 - 2¹ = 102203429 is a prime.

It is a super-2 number, since 2×102203431² = 20891082616343522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102203401) 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 7 ways as a sum of consecutive naturals, for example, 62836 + ... + 64441.

It is an arithmetic number, because the mean of its divisors is an integer number (14127858).

Almost surely, 2^102203431 is an apocalyptic number.

102203431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102203431 is a deficient number, since it is larger than the sum of its proper divisors (10819433).

102203431 is a wasteful number, since it uses less digits than its factorization.

102203431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127361.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 102203431 is about 10109.5712569822. The cubic root of 102203431 is about 467.5432863348.

Adding to 102203431 its reverse (134302201), we get a palindrome (236505632).

The spelling of 102203431 in words is "one hundred two million, two hundred three thousand, four hundred thirty-one".