1213232430 has 32 divisors (see below), whose sum is σ = 3005687808. Its totient is φ = 313092000.

The previous prime is 1213232369. The next prime is 1213232431. The reversal of 1213232430 is 342323121.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213232397 and 1213232406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213232431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 651346 + ... + 653205.

It is an arithmetic number, because the mean of its divisors is an integer number (93927744).

Almost surely, 2^1213232430 is an apocalyptic number.

1213232430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213232430 is an abundant number, since it is smaller than the sum of its proper divisors (1792455378).

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

1213232430 is a wasteful number, since it uses less digits than its factorization.

1213232430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1304592.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1213232430 is about 34831.4861870693. The cubic root of 1213232430 is about 1066.5502868904.

Adding to 1213232430 its reverse (342323121), we get a palindrome (1555555551).

It can be divided in two parts, 121323 and 2430, that added together give a triangular number (123753 = T₄₉₇).

The spelling of 1213232430 in words is "one billion, two hundred thirteen million, two hundred thirty-two thousand, four hundred thirty".