201053121461 has 2 divisors, whose sum is σ = 201053121462. Its totient is φ = 201053121460.

The previous prime is 201053121457. The next prime is 201053121481. The reversal of 201053121461 is 164121350102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 110403352900 + 90649768561 = 332270^2 + 301081^2 .

It is a cyclic number.

It is not a de Polignac number, because 201053121461 - 2² = 201053121457 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 201053121461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201053121481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100526560730 + 100526560731.

It is an arithmetic number, because the mean of its divisors is an integer number (100526560731).

Almost surely, 2^201053121461 is an apocalyptic number.

It is an amenable number.

201053121461 is a deficient number, since it is larger than the sum of its proper divisors (1).

201053121461 is an equidigital number, since it uses as much as digits as its factorization.

201053121461 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1440, while the sum is 26.

Adding to 201053121461 its reverse (164121350102), we get a palindrome (365174471563).

The spelling of 201053121461 in words is "two hundred one billion, fifty-three million, one hundred twenty-one thousand, four hundred sixty-one".