102431233 has 4 divisors (see below), whose sum is σ = 102461508. Its totient is φ = 102400960.

The previous prime is 102431177. The next prime is 102431249. The reversal of 102431233 is 332134201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 54641664 + 47789569 = 7392^2 + 6913^2 .

It is a cyclic number.

It is not a de Polignac number, because 102431233 - 2⁹ = 102430721 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102431233.

It is not an unprimeable number, because it can be changed into a prime (102431293) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9316 + ... + 17077.

It is an arithmetic number, because the mean of its divisors is an integer number (25615377).

Almost surely, 2^102431233 is an apocalyptic number.

It is an amenable number.

102431233 is a deficient number, since it is larger than the sum of its proper divisors (30275).

102431233 is an equidigital number, since it uses as much as digits as its factorization.

102431233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30274.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 102431233 is about 10120.8316357896. The cubic root of 102431233 is about 467.8903988237.

Adding to 102431233 its reverse (332134201), we get a palindrome (434565434).

It can be divided in two parts, 10243 and 1233, that added together give a triangular number (11476 = T₁₅₁).

The spelling of 102431233 in words is "one hundred two million, four hundred thirty-one thousand, two hundred thirty-three".