1213354430 has 16 divisors (see below), whose sum is σ = 2312511120. Its totient is φ = 456792192.

The previous prime is 1213354409. The next prime is 1213354433. The reversal of 1213354430 is 344533121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213354430.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213354433) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3568520 + ... + 3568859.

It is an arithmetic number, because the mean of its divisors is an integer number (144531945).

Almost surely, 2^1213354430 is an apocalyptic number.

1213354430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213354430 is a deficient number, since it is larger than the sum of its proper divisors (1099156690).

1213354430 is a wasteful number, since it uses less digits than its factorization.

1213354430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7137403.

The product of its (nonzero) digits is 4320, while the sum is 26.

The square root of 1213354430 is about 34833.2374320849. The cubic root of 1213354430 is about 1066.5860356803.

Adding to 1213354430 its reverse (344533121), we get a palindrome (1557887551).

The spelling of 1213354430 in words is "one billion, two hundred thirteen million, three hundred fifty-four thousand, four hundred thirty".