201420031277 has 2 divisors, whose sum is σ = 201420031278. Its totient is φ = 201420031276.

The previous prime is 201420031237. The next prime is 201420031343. The reversal of 201420031277 is 772130024102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101193335881 + 100226695396 = 318109^2 + 316586^2 .

It is a cyclic number.

It is not a de Polignac number, because 201420031277 - 2²⁴ = 201403254061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201420031217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100710015638 + 100710015639.

It is an arithmetic number, because the mean of its divisors is an integer number (100710015639).

Almost surely, 2^201420031277 is an apocalyptic number.

It is an amenable number.

201420031277 is a deficient number, since it is larger than the sum of its proper divisors (1).

201420031277 is an equidigital number, since it uses as much as digits as its factorization.

201420031277 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4704, while the sum is 29.

Adding to 201420031277 its reverse (772130024102), we get a palindrome (973550055379).

The spelling of 201420031277 in words is "two hundred one billion, four hundred twenty million, thirty-one thousand, two hundred seventy-seven".