335040305021 has 2 divisors, whose sum is σ = 335040305022. Its totient is φ = 335040305020.

The previous prime is 335040305003. The next prime is 335040305053. The reversal of 335040305021 is 120503040533.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 330400788025 + 4639516996 = 574805^2 + 68114^2 .

It is a cyclic number.

It is not a de Polignac number, because 335040305021 - 2²⁶ = 334973196157 is a prime.

It is a super-2 number, since 2×335040305021² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (335040305921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167520152510 + 167520152511.

It is an arithmetic number, because the mean of its divisors is an integer number (167520152511).

Almost surely, 2^335040305021 is an apocalyptic number.

It is an amenable number.

335040305021 is a deficient number, since it is larger than the sum of its proper divisors (1).

335040305021 is an equidigital number, since it uses as much as digits as its factorization.

335040305021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 335040305021 its reverse (120503040533), we get a palindrome (455543345554).

The spelling of 335040305021 in words is "three hundred thirty-five billion, forty million, three hundred five thousand, twenty-one".