1213420220341 has 16 divisors (see below), whose sum is σ = 1403600736384. Its totient is φ = 1027450661184.

The previous prime is 1213420220329. The next prime is 1213420220461. The reversal of 1213420220341 is 1430220243121.

It is a cyclic number.

It is not a de Polignac number, because 1213420220341 - 2¹⁹ = 1213419696053 is a prime.

It is a super-2 number, since 2×1213420220341² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213420220041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6774955 + ... + 6951751.

It is an arithmetic number, because the mean of its divisors is an integer number (87725046024).

Almost surely, 2^{1213420220341} is an apocalyptic number.

It is an amenable number.

1213420220341 is a deficient number, since it is larger than the sum of its proper divisors (190180516043).

1213420220341 is a wasteful number, since it uses less digits than its factorization.

1213420220341 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 188700.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1213420220341 its reverse (1430220243121), we get a palindrome (2643640463462).

The spelling of 1213420220341 in words is "one trillion, two hundred thirteen billion, four hundred twenty million, two hundred twenty thousand, three hundred forty-one".