340105401021 has 16 divisors (see below), whose sum is σ = 469129334400. Its totient is φ = 218909815488.

The previous prime is 340105401011. The next prime is 340105401047. The reversal of 340105401021 is 120104501043.

It is not a de Polignac number, because 340105401021 - 2⁷ = 340105400893 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340105401001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2739720 + ... + 2861166.

It is an arithmetic number, because the mean of its divisors is an integer number (29320583400).

Almost surely, 2^340105401021 is an apocalyptic number.

It is an amenable number.

340105401021 is a deficient number, since it is larger than the sum of its proper divisors (129023933379).

340105401021 is a wasteful number, since it uses less digits than its factorization.

340105401021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 153668.

The product of its (nonzero) digits is 480, while the sum is 21.

Adding to 340105401021 its reverse (120104501043), we get a palindrome (460209902064).

The spelling of 340105401021 in words is "three hundred forty billion, one hundred five million, four hundred one thousand, twenty-one".