1420254115511 has 32 divisors (see below), whose sum is σ = 1812882948096. Its totient is φ = 1080359532000.

The previous prime is 1420254115507. The next prime is 1420254115519. The reversal of 1420254115511 is 1155114520241.

It is not a de Polignac number, because 1420254115511 - 2² = 1420254115507 is a prime.

It is a super-2 number, since 2×1420254115511² (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 (1420254115519) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5945306 + ... + 6179576.

It is an arithmetic number, because the mean of its divisors is an integer number (56652592128).

Almost surely, 2^{1420254115511} is an apocalyptic number.

1420254115511 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1420254115511 is a deficient number, since it is larger than the sum of its proper divisors (392628832585).

1420254115511 is a wasteful number, since it uses less digits than its factorization.

1420254115511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 236163.

The product of its (nonzero) digits is 8000, while the sum is 32.

Adding to 1420254115511 its reverse (1155114520241), we get a palindrome (2575368635752).

The spelling of 1420254115511 in words is "one trillion, four hundred twenty billion, two hundred fifty-four million, one hundred fifteen thousand, five hundred eleven".