1213030 has 64 divisors (see below), whose sum is σ = 2838528. Its totient is φ = 362880.
The previous prime is 1213027. The next prime is 1213033. The reversal of 1213030 is 303121.
1213030 is nontrivially palindromic in base 6.
It is an interprime number because it is at equal distance from previous prime (1213027) and next prime (1213033).
It is a Harshad number since it is a multiple of its sum of digits (10).
It is a junction number, because it is equal to n+sod(n) for n = 1212998 and 1213016.
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (1213033) by changing a digit.
It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 28189 + ... + 28231.
It is an arithmetic number, because the mean of its divisors is an integer number (44352).
21213030 is an apocalyptic number.
1213030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.
1213030 is an abundant number, since it is smaller than the sum of its proper divisors (1625498).
It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.
1213030 is a wasteful number, since it uses less digits than its factorization.
1213030 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 101.
The product of its (nonzero) digits is 18, while the sum is 10.
The square root of 1213030 is about 1101.3764115869. The cubic root of 1213030 is about 106.6490964984.
Adding to 1213030 its reverse (303121), we get a palindrome (1516151).
Subtracting from 1213030 its reverse (303121), we obtain a palindrome (909909).
The spelling of 1213030 in words is "one million, two hundred thirteen thousand, thirty".
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