102430431 has 24 divisors (see below), whose sum is σ = 157023360. Its totient is φ = 64203216.

The previous prime is 102430409. The next prime is 102430439. The reversal of 102430431 is 134034201.

It is not a de Polignac number, because 102430431 - 2⁵ = 102430399 is a prime.

It is a super-2 number, since 2×102430431² = 20983986389691522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102430439) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8020 + ... + 16406.

It is an arithmetic number, because the mean of its divisors is an integer number (6542640).

Almost surely, 2^102430431 is an apocalyptic number.

102430431 is a deficient number, since it is larger than the sum of its proper divisors (54592929).

102430431 is a wasteful number, since it uses less digits than its factorization.

102430431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8475 (or 8472 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 102430431 is about 10120.7920144621. The cubic root of 102430431 is about 467.8891776822.

Adding to 102430431 its reverse (134034201), we get a palindrome (236464632).

The spelling of 102430431 in words is "one hundred two million, four hundred thirty thousand, four hundred thirty-one".