212133031427 has 2 divisors, whose sum is σ = 212133031428. Its totient is φ = 212133031426.

The previous prime is 212133031379. The next prime is 212133031441. The reversal of 212133031427 is 724130331212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 212133031427 - 2¹⁸ = 212132769283 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212133031427.

It is not a weakly prime, because it can be changed into another prime (212133031027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106066515713 + 106066515714.

It is an arithmetic number, because the mean of its divisors is an integer number (106066515714).

Almost surely, 2^212133031427 is an apocalyptic number.

212133031427 is a deficient number, since it is larger than the sum of its proper divisors (1).

212133031427 is an equidigital number, since it uses as much as digits as its factorization.

212133031427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6048, while the sum is 29.

Adding to 212133031427 its reverse (724130331212), we get a palindrome (936263362639).

The spelling of 212133031427 in words is "two hundred twelve billion, one hundred thirty-three million, thirty-one thousand, four hundred twenty-seven".