340143430351 has 4 divisors (see below), whose sum is σ = 351115799104. Its totient is φ = 329171061600.

The previous prime is 340143430337. The next prime is 340143430373. The reversal of 340143430351 is 153034341043.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-340143430351 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (31), and also a Moran number because the ratio is a prime number: 10972368721 = 340143430351 / (3 + 4 + 0 + 1 + 4 + 3 + 4 + 3 + 0 + 3 + 5 + 1).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (340143430951) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5486184330 + ... + 5486184391.

It is an arithmetic number, because the mean of its divisors is an integer number (87778949776).

Almost surely, 2^340143430351 is an apocalyptic number.

340143430351 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

340143430351 is a deficient number, since it is larger than the sum of its proper divisors (10972368753).

340143430351 is a wasteful number, since it uses less digits than its factorization.

340143430351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10972368752.

The product of its (nonzero) digits is 25920, while the sum is 31.

Adding to 340143430351 its reverse (153034341043), we get a palindrome (493177771394).

The spelling of 340143430351 in words is "three hundred forty billion, one hundred forty-three million, four hundred thirty thousand, three hundred fifty-one".