35400020121 has 24 divisors (see below), whose sum is σ = 53118000000. Its totient is φ = 22690840032.

The previous prime is 35400020111. The next prime is 35400020141. The reversal of 35400020121 is 12102000453.

35400020121 is a `hidden beast` number, since 3 + 540 + 0 + 0 + 2 + 0 + 121 = 666.

It is not a de Polignac number, because 35400020121 - 2⁹ = 35400019609 is a prime.

It is a super-2 number, since 2×35400020121² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 35400020094 and 35400020103.

It is not an unprimeable number, because it can be changed into a prime (35400020111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 221371 + ... + 346128.

It is an arithmetic number, because the mean of its divisors is an integer number (2213250000).

Almost surely, 2^35400020121 is an apocalyptic number.

It is an amenable number.

35400020121 is a deficient number, since it is larger than the sum of its proper divisors (17717979879).

35400020121 is a wasteful number, since it uses less digits than its factorization.

35400020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 567773 (or 567770 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 35400020121 its reverse (12102000453), we get a palindrome (47502020574).

The spelling of 35400020121 in words is "thirty-five billion, four hundred million, twenty thousand, one hundred twenty-one".