1205011430 has 48 divisors (see below), whose sum is σ = 2553631920. Its totient is φ = 408155328.

The previous prime is 1205011429. The next prime is 1205011477. The reversal of 1205011430 is 341105021.

It is a junction number, because it is equal to n+sod(n) for n = 1205011399 and 1205011408.

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, 25856 + ... + 55484.

It is an arithmetic number, because the mean of its divisors is an integer number (53200665).

Almost surely, 2^1205011430 is an apocalyptic number.

1205011430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1205011430 is an abundant number, since it is smaller than the sum of its proper divisors (1348620490).

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

1205011430 is a wasteful number, since it uses less digits than its factorization.

1205011430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29733 (or 29726 counting only the distinct ones).

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

The square root of 1205011430 is about 34713.2745502351. The cubic root of 1205011430 is about 1064.1358033032.

Adding to 1205011430 its reverse (341105021), we get a palindrome (1546116451).

The spelling of 1205011430 in words is "one billion, two hundred five million, eleven thousand, four hundred thirty".