1213123035 has 8 divisors (see below), whose sum is σ = 1940996880. Its totient is φ = 646998944.

The previous prime is 1213123027. The next prime is 1213123049. The reversal of 1213123035 is 5303213121.

1213123035 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1213123035 - 2³ = 1213123027 is a prime.

It is a super-2 number, since 2×1213123035² = 2943334996095222450, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40437420 + ... + 40437449.

It is an arithmetic number, because the mean of its divisors is an integer number (242624610).

Almost surely, 2^1213123035 is an apocalyptic number.

1213123035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1213123035 is a deficient number, since it is larger than the sum of its proper divisors (727873845).

1213123035 is an equidigital number, since it uses as much as digits as its factorization.

1213123035 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80874877.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 1213123035 is about 34829.9158052385. The cubic root of 1213123035 is about 1066.5182296158.

Adding to 1213123035 its reverse (5303213121), we get a palindrome (6516336156).

The spelling of 1213123035 in words is "one billion, two hundred thirteen million, one hundred twenty-three thousand, thirty-five".