353758942121 has 16 divisors (see below), whose sum is σ = 390431800080. Its totient is φ = 318444487680.

The previous prime is 353758942109. The next prime is 353758942151. The reversal of 353758942121 is 121249857353.

It can be written as a sum of positive squares in 8 ways, for example, as 14289572521 + 339469369600 = 119539^2 + 582640^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-353758942121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 353758942121.

It is not an unprimeable number, because it can be changed into a prime (353758942151) 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, 1101245 + ... + 1385733.

It is an arithmetic number, because the mean of its divisors is an integer number (24401987505).

Almost surely, 2^353758942121 is an apocalyptic number.

It is an amenable number.

353758942121 is a deficient number, since it is larger than the sum of its proper divisors (36672857959).

353758942121 is a wasteful number, since it uses less digits than its factorization.

353758942121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 286876.

The product of its digits is 1814400, while the sum is 50.

The spelling of 353758942121 in words is "three hundred fifty-three billion, seven hundred fifty-eight million, nine hundred forty-two thousand, one hundred twenty-one".