340021021031311 has 2 divisors, whose sum is σ = 340021021031312. Its totient is φ = 340021021031310.

The previous prime is 340021021031281. The next prime is 340021021031441. The reversal of 340021021031311 is 113130120120043.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 340021021031311 - 2²¹ = 340021018934159 is a prime.

It is a super-2 number, since 2×340021021031311² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (340021021031011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170010510515655 + 170010510515656.

It is an arithmetic number, because the mean of its divisors is an integer number (170010510515656).

Almost surely, 2^{340021021031311} is an apocalyptic number.

340021021031311 is a deficient number, since it is larger than the sum of its proper divisors (1).

340021021031311 is an equidigital number, since it uses as much as digits as its factorization.

340021021031311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 340021021031311 its reverse (113130120120043), we get a palindrome (453151141151354).

The spelling of 340021021031311 in words is "three hundred forty trillion, twenty-one billion, twenty-one million, thirty-one thousand, three hundred eleven".