102511430 has 48 divisors (see below), whose sum is σ = 216420336. Its totient is φ = 34856640.

The previous prime is 102511429. The next prime is 102511459. The reversal of 102511430 is 34115201.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 102511399 and 102511408.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 63392 + ... + 64988.

It is an arithmetic number, because the mean of its divisors is an integer number (4508757).

Almost surely, 2^102511430 is an apocalyptic number.

102511430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

102511430 is an abundant number, since it is smaller than the sum of its proper divisors (113908906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102511430 is a wasteful number, since it uses less digits than its factorization.

102511430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1749 (or 1742 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 102511430 is about 10124.7928373868. The cubic root of 102511430 is about 468.0124762301.

Adding to 102511430 its reverse (34115201), we get a palindrome (136626631).

The spelling of 102511430 in words is "one hundred two million, five hundred eleven thousand, four hundred thirty".