1213434026 has 8 divisors (see below), whose sum is σ = 2080172640. Its totient is φ = 520043148.

The previous prime is 1213433989. The next prime is 1213434029. The reversal of 1213434026 is 6204343121.

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

It is a junction number, because it is equal to n+sod(n) for n = 1213433986 and 1213434004.

It is not an unprimeable number, because it can be changed into a prime (1213434029) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43336916 + ... + 43336943.

It is an arithmetic number, because the mean of its divisors is an integer number (260021580).

Almost surely, 2^1213434026 is an apocalyptic number.

1213434026 is a deficient number, since it is larger than the sum of its proper divisors (866738614).

1213434026 is an equidigital number, since it uses as much as digits as its factorization.

1213434026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86673868.

The product of its (nonzero) digits is 3456, while the sum is 26.

The square root of 1213434026 is about 34834.3799428094. The cubic root of 1213434026 is about 1066.6093578368.

Adding to 1213434026 its reverse (6204343121), we get a palindrome (7417777147).

The spelling of 1213434026 in words is "one billion, two hundred thirteen million, four hundred thirty-four thousand, twenty-six".