355212031 has 2 divisors, whose sum is σ = 355212032. Its totient is φ = 355212030.

The previous prime is 355212007. The next prime is 355212047. The reversal of 355212031 is 130212553.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 355212031 - 2⁵ = 355211999 is a prime.

It is a super-2 number, since 2×355212031² = 252351173934289922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 355211993 and 355212011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355212931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177606015 + 177606016.

It is an arithmetic number, because the mean of its divisors is an integer number (177606016).

Almost surely, 2^355212031 is an apocalyptic number.

355212031 is a deficient number, since it is larger than the sum of its proper divisors (1).

355212031 is an equidigital number, since it uses as much as digits as its factorization.

355212031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 900, while the sum is 22.

The square root of 355212031 is about 18847.0695600138. The cubic root of 355212031 is about 708.2108167833.

Adding to 355212031 its reverse (130212553), we get a palindrome (485424584).

The spelling of 355212031 in words is "three hundred fifty-five million, two hundred twelve thousand, thirty-one".