356109621121 has 4 divisors (see below), whose sum is σ = 356117720832. Its totient is φ = 356101521412.

The previous prime is 356109621097. The next prime is 356109621137. The reversal of 356109621121 is 121126901653.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 356109621121 - 2⁵ = 356109621089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (356109624121) 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 3 ways as a sum of consecutive naturals, for example, 3983545 + ... + 4071958.

It is an arithmetic number, because the mean of its divisors is an integer number (89029430208).

Almost surely, 2^356109621121 is an apocalyptic number.

It is an amenable number.

356109621121 is a deficient number, since it is larger than the sum of its proper divisors (8099711).

356109621121 is an equidigital number, since it uses as much as digits as its factorization.

356109621121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8099710.

The product of its (nonzero) digits is 19440, while the sum is 37.

The spelling of 356109621121 in words is "three hundred fifty-six billion, one hundred nine million, six hundred twenty-one thousand, one hundred twenty-one".