201034201421 has 2 divisors, whose sum is σ = 201034201422. Its totient is φ = 201034201420.

The previous prime is 201034201393. The next prime is 201034201427. The reversal of 201034201421 is 124102430102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 165535873321 + 35498328100 = 406861^2 + 188410^2 .

It is a cyclic number.

It is not a de Polignac number, because 201034201421 - 2³⁰ = 199960459597 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 201034201393 and 201034201402.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201034201427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100517100710 + 100517100711.

It is an arithmetic number, because the mean of its divisors is an integer number (100517100711).

Almost surely, 2^201034201421 is an apocalyptic number.

It is an amenable number.

201034201421 is a deficient number, since it is larger than the sum of its proper divisors (1).

201034201421 is an equidigital number, since it uses as much as digits as its factorization.

201034201421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 201034201421 its reverse (124102430102), we get a palindrome (325136631523).

The spelling of 201034201421 in words is "two hundred one billion, thirty-four million, two hundred one thousand, four hundred twenty-one".