353012021405 has 16 divisors (see below), whose sum is σ = 427561200000. Its totient is φ = 279785638080.

The previous prime is 353012021393. The next prime is 353012021473. The reversal of 353012021405 is 504120210353.

It is a happy number.

It is not a de Polignac number, because 353012021405 - 2²⁸ = 352743585949 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57530 + ... + 842219.

It is an arithmetic number, because the mean of its divisors is an integer number (26722575000).

Almost surely, 2^353012021405 is an apocalyptic number.

It is an amenable number.

353012021405 is a deficient number, since it is larger than the sum of its proper divisors (74549178595).

353012021405 is a wasteful number, since it uses less digits than its factorization.

353012021405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 900484.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 353012021405 its reverse (504120210353), we get a palindrome (857132231758).

The spelling of 353012021405 in words is "three hundred fifty-three billion, twelve million, twenty-one thousand, four hundred five".