340135421143 has 12 divisors (see below), whose sum is σ = 395814486600. Its totient is φ = 291436513872.

The previous prime is 340135421113. The next prime is 340135421173. The reversal of 340135421143 is 341124531043.

It is an interprime number because it is at equal distance from previous prime (340135421113) and next prime (340135421173).

It is a de Polignac number, because none of the positive numbers 2^k-340135421143 is a prime.

It is a super-2 number, since 2×340135421143² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340135421113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1153696 + ... + 1418197.

It is an arithmetic number, because the mean of its divisors is an integer number (32984540550).

Almost surely, 2^340135421143 is an apocalyptic number.

340135421143 is a deficient number, since it is larger than the sum of its proper divisors (55679065457).

340135421143 is a wasteful number, since it uses less digits than its factorization.

340135421143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2574606 (or 2574599 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 340135421143 its reverse (341124531043), we get a palindrome (681259952186).

The spelling of 340135421143 in words is "three hundred forty billion, one hundred thirty-five million, four hundred twenty-one thousand, one hundred forty-three".