1213434323101 has 64 divisors (see below), whose sum is σ = 1637895168000. Its totient is φ = 868164595200.

The previous prime is 1213434323093. The next prime is 1213434323113. The reversal of 1213434323101 is 1013234343121.

It is not a de Polignac number, because 1213434323101 - 2³ = 1213434323093 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1213434323101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213434323501) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 261007425 + ... + 261012073.

It is an arithmetic number, because the mean of its divisors is an integer number (25592112000).

Almost surely, 2^{1213434323101} is an apocalyptic number.

1213434323101 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1213434323101 is a deficient number, since it is larger than the sum of its proper divisors (424460844899).

1213434323101 is a wasteful number, since it uses less digits than its factorization.

1213434323101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6010.

The product of its (nonzero) digits is 5184, while the sum is 28.

Adding to 1213434323101 its reverse (1013234343121), we get a palindrome (2226668666222).

It can be divided in two parts, 121343 and 4323101, that added together give a palindrome (4444444).

The spelling of 1213434323101 in words is "one trillion, two hundred thirteen billion, four hundred thirty-four million, three hundred twenty-three thousand, one hundred one".