1213011030 has 384 divisors, whose sum is σ = 4074209280. Its totient is φ = 224040960.

The previous prime is 1213011001. The next prime is 1213011077. The reversal of 1213011030 is 301103121.

It is a junction number, because it is equal to n+sod(n) for n = 1213010997 and 1213011015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 15354531 + ... + 15354609.

It is an arithmetic number, because the mean of its divisors is an integer number (10609920).

Almost surely, 2^1213011030 is an apocalyptic number.

1213011030 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 1213011030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2037104640).

1213011030 is an abundant number, since it is smaller than the sum of its proper divisors (2861198250).

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

1213011030 is a wasteful number, since it uses less digits than its factorization.

1213011030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 164 (or 147 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 1213011030 is about 34828.3078830999. The cubic root of 1213011030 is about 1066.4854055060.

Adding to 1213011030 its reverse (301103121), we get a palindrome (1514114151).

The spelling of 1213011030 in words is "one billion, two hundred thirteen million, eleven thousand, thirty".