1211424330 has 32 divisors (see below), whose sum is σ = 2922496704. Its totient is φ = 321371136.

The previous prime is 1211424323. The next prime is 1211424343. The reversal of 1211424330 is 334241121.

It is a super-3 number, since 3×1211424330³ (a number of 28 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1211424297 and 1211424306.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98824 + ... + 110403.

It is an arithmetic number, because the mean of its divisors is an integer number (91328022).

Almost surely, 2^1211424330 is an apocalyptic number.

1211424330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1211424330 is an abundant number, since it is smaller than the sum of its proper divisors (1711072374).

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

1211424330 is a wasteful number, since it uses less digits than its factorization.

1211424330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209430.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1211424330 is about 34805.5215447205. The cubic root of 1211424330 is about 1066.0201910599.

Adding to 1211424330 its reverse (334241121), we get a palindrome (1545665451).

The spelling of 1211424330 in words is "one billion, two hundred eleven million, four hundred twenty-four thousand, three hundred thirty".