355235540121 has 48 divisors (see below), whose sum is σ = 642041382528. Its totient is φ = 183871641600.

The previous prime is 355235540119. The next prime is 355235540123. The reversal of 355235540121 is 121045532553.

355235540121 is a `hidden beast` number, since 3 + 5 + 523 + 5 + 5 + 4 + 0 + 121 = 666.

It is an interprime number because it is at equal distance from previous prime (355235540119) and next prime (355235540123).

It is not a de Polignac number, because 355235540121 - 2¹ = 355235540119 is a prime.

It is not an unprimeable number, because it can be changed into a prime (355235540123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 733320 + ... + 1117241.

It is an arithmetic number, because the mean of its divisors is an integer number (13375862136).

Almost surely, 2^355235540121 is an apocalyptic number.

It is an amenable number.

355235540121 is a deficient number, since it is larger than the sum of its proper divisors (286805842407).

355235540121 is a wasteful number, since it uses less digits than its factorization.

355235540121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1850862 (or 1850859 counting only the distinct ones).

The product of its (nonzero) digits is 90000, while the sum is 36.

The spelling of 355235540121 in words is "three hundred fifty-five billion, two hundred thirty-five million, five hundred forty thousand, one hundred twenty-one".