1213651230 has 32 divisors (see below), whose sum is σ = 3177560448. Its totient is φ = 294218400.

The previous prime is 1213651213. The next prime is 1213651237. The reversal of 1213651230 is 321563121.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1213651230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213651237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1838536 + ... + 1839195.

It is an arithmetic number, because the mean of its divisors is an integer number (99298764).

Almost surely, 2^1213651230 is an apocalyptic number.

1213651230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213651230 is an abundant number, since it is smaller than the sum of its proper divisors (1963909218).

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

1213651230 is a wasteful number, since it uses less digits than its factorization.

1213651230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3677752.

The product of its (nonzero) digits is 1080, while the sum is 24.

The square root of 1213651230 is about 34837.4974703982. The cubic root of 1213651230 is about 1066.6729948626.

The spelling of 1213651230 in words is "one billion, two hundred thirteen million, six hundred fifty-one thousand, two hundred thirty".