1213122030 has 64 divisors (see below), whose sum is σ = 2961515520. Its totient is φ = 317972736.

The previous prime is 1213122017. The next prime is 1213122059. The reversal of 1213122030 is 302213121.

1213122030 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 785439 + ... + 786981.

It is an arithmetic number, because the mean of its divisors is an integer number (46273680).

Almost surely, 2^1213122030 is an apocalyptic number.

1213122030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1213122030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1480757760).

1213122030 is an abundant number, since it is smaller than the sum of its proper divisors (1748393490).

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

1213122030 is a wasteful number, since it uses less digits than its factorization.

1213122030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1213122030 is about 34829.9013779827. The cubic root of 1213122030 is about 1066.5179351001.

Adding to 1213122030 its reverse (302213121), we get a palindrome (1515335151).

The spelling of 1213122030 in words is "one billion, two hundred thirteen million, one hundred twenty-two thousand, thirty".