340202421401 has 2 divisors, whose sum is σ = 340202421402. Its totient is φ = 340202421400.

The previous prime is 340202421347. The next prime is 340202421509. The reversal of 340202421401 is 104124202043.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195611598400 + 144590823001 = 442280^2 + 380251^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340202421401 is a prime.

It is not a weakly prime, because it can be changed into another prime (340202321401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170101210700 + 170101210701.

It is an arithmetic number, because the mean of its divisors is an integer number (170101210701).

Almost surely, 2^340202421401 is an apocalyptic number.

It is an amenable number.

340202421401 is a deficient number, since it is larger than the sum of its proper divisors (1).

340202421401 is an equidigital number, since it uses as much as digits as its factorization.

340202421401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 340202421401 its reverse (104124202043), we get a palindrome (444326623444).

The spelling of 340202421401 in words is "three hundred forty billion, two hundred two million, four hundred twenty-one thousand, four hundred one".