212303401 has 2 divisors, whose sum is σ = 212303402. Its totient is φ = 212303400.

The previous prime is 212303393. The next prime is 212303431. The reversal of 212303401 is 104303212.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199515625 + 12787776 = 14125^2 + 3576^2 .

It is a cyclic number.

It is not a de Polignac number, because 212303401 - 2³ = 212303393 is a prime.

It is not a weakly prime, because it can be changed into another prime (212303431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106151700 + 106151701.

It is an arithmetic number, because the mean of its divisors is an integer number (106151701).

Almost surely, 2^212303401 is an apocalyptic number.

It is an amenable number.

212303401 is a deficient number, since it is larger than the sum of its proper divisors (1).

212303401 is an equidigital number, since it uses as much as digits as its factorization.

212303401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 212303401 is about 14570.6348866479. The cubic root of 212303401 is about 596.5575096897.

Adding to 212303401 its reverse (104303212), we get a palindrome (316606613).

The spelling of 212303401 in words is "two hundred twelve million, three hundred three thousand, four hundred one".