1210420013401 has 2 divisors, whose sum is σ = 1210420013402. Its totient is φ = 1210420013400.

The previous prime is 1210420013389. The next prime is 1210420013431. The reversal of 1210420013401 is 1043100240121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 893546716176 + 316873297225 = 945276^2 + 562915^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1210420013401 is a prime.

It is not a weakly prime, because it can be changed into another prime (1210420013431) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605210006700 + 605210006701.

It is an arithmetic number, because the mean of its divisors is an integer number (605210006701).

Almost surely, 2^{1210420013401} is an apocalyptic number.

It is an amenable number.

1210420013401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210420013401 is an equidigital number, since it uses as much as digits as its factorization.

1210420013401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 1210420013401 its reverse (1043100240121), we get a palindrome (2253520253522).

The spelling of 1210420013401 in words is "one trillion, two hundred ten billion, four hundred twenty million, thirteen thousand, four hundred one".