1213533411 has 8 divisors (see below), whose sum is σ = 1618256640. Its totient is φ = 808916232.

The previous prime is 1213533397. The next prime is 1213533427. The reversal of 1213533411 is 1143353121.

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

It is not a de Polignac number, because 1213533411 - 2⁷ = 1213533283 is a prime.

It is a super-2 number, since 2×1213533411² = 2945326679226589842, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213533481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5826 + ... + 49608.

It is an arithmetic number, because the mean of its divisors is an integer number (202282080).

Almost surely, 2^1213533411 is an apocalyptic number.

1213533411 is a deficient number, since it is larger than the sum of its proper divisors (404723229).

1213533411 is an equidigital number, since it uses as much as digits as its factorization.

1213533411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53025.

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

The square root of 1213533411 is about 34835.8064496862. The cubic root of 1213533411 is about 1066.6384768700.

Adding to 1213533411 its reverse (1143353121), we get a palindrome (2356886532).

The spelling of 1213533411 in words is "one billion, two hundred thirteen million, five hundred thirty-three thousand, four hundred eleven".