1306420111451 has 32 divisors (see below), whose sum is σ = 1654385660928. Its totient is φ = 1004034165120.

The previous prime is 1306420111379. The next prime is 1306420111487. The reversal of 1306420111451 is 1541110246031.

It is not a de Polignac number, because 1306420111451 - 2¹⁰ = 1306420110427 is a prime.

It is a super-2 number, since 2×1306420111451² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1306420110451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 214031 + ... + 1630536.

It is an arithmetic number, because the mean of its divisors is an integer number (51699551904).

Almost surely, 2^{1306420111451} is an apocalyptic number.

1306420111451 is a deficient number, since it is larger than the sum of its proper divisors (347965549477).

1306420111451 is a wasteful number, since it uses less digits than its factorization.

1306420111451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1844811.

The product of its (nonzero) digits is 2880, while the sum is 29.

Adding to 1306420111451 its reverse (1541110246031), we get a palindrome (2847530357482).

The spelling of 1306420111451 in words is "one trillion, three hundred six billion, four hundred twenty million, one hundred eleven thousand, four hundred fifty-one".