357020121 has 4 divisors (see below), whose sum is σ = 476026832. Its totient is φ = 238013412.

The previous prime is 357020119. The next prime is 357020171. The reversal of 357020121 is 121020753.

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 not a de Polignac number, because 357020121 - 2¹ = 357020119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (357020171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59503351 + ... + 59503356.

It is an arithmetic number, because the mean of its divisors is an integer number (119006708).

Almost surely, 2^357020121 is an apocalyptic number.

It is an amenable number.

357020121 is a deficient number, since it is larger than the sum of its proper divisors (119006711).

357020121 is a wasteful number, since it uses less digits than its factorization.

357020121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 119006710.

The product of its (nonzero) digits is 420, while the sum is 21.

The square root of 357020121 is about 18894.9760783125. The cubic root of 357020121 is about 709.4104217494.

Adding to 357020121 its reverse (121020753), we get a palindrome (478040874).

The spelling of 357020121 in words is "three hundred fifty-seven million, twenty thousand, one hundred twenty-one".