1213003434 has 16 divisors (see below), whose sum is σ = 2553691680. Its totient is φ = 383053680.

The previous prime is 1213003411. The next prime is 1213003439. The reversal of 1213003434 is 4343003121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213003434.

It is not an unprimeable number, because it can be changed into a prime (1213003439) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5320077 + ... + 5320304.

It is an arithmetic number, because the mean of its divisors is an integer number (159605730).

Almost surely, 2^1213003434 is an apocalyptic number.

1213003434 is an abundant number, since it is smaller than the sum of its proper divisors (1340688246).

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

1213003434 is a wasteful number, since it uses less digits than its factorization.

1213003434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10640405.

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 1213003434 is about 34828.1988337037. The cubic root of 1213003434 is about 1066.4831793542.

Adding to 1213003434 its reverse (4343003121), we get a palindrome (5556006555).

The spelling of 1213003434 in words is "one billion, two hundred thirteen million, three thousand, four hundred thirty-four".