102434431 has 8 divisors (see below), whose sum is σ = 112241664. Its totient is φ = 92709720.

The previous prime is 102434419. The next prime is 102434473. The reversal of 102434431 is 134434201.

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 102434431 - 2¹⁷ = 102303359 is a prime.

It is a super-2 number, since 2×102434431² = 20985625308587522, 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 (102434131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18015 + ... + 23008.

It is an arithmetic number, because the mean of its divisors is an integer number (14030208).

Almost surely, 2^102434431 is an apocalyptic number.

102434431 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102434431 is a deficient number, since it is larger than the sum of its proper divisors (9807233).

102434431 is a wasteful number, since it uses less digits than its factorization.

102434431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41261.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 102434431 is about 10120.9896255258. The cubic root of 102434431 is about 467.8952681000.

Adding to 102434431 its reverse (134434201), we get a palindrome (236868632).

The spelling of 102434431 in words is "one hundred two million, four hundred thirty-four thousand, four hundred thirty-one".