1343001731 has 2 divisors, whose sum is σ = 1343001732. Its totient is φ = 1343001730.

The previous prime is 1343001721. The next prime is 1343001733. The reversal of 1343001731 is 1371003431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1343001731 - 2¹⁰ = 1343000707 is a prime.

It is a super-2 number, since 2×1343001731² = 3607307298937992722, which contains 22 as substring.

Together with 1343001733, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 1343001697 and 1343001706.

It is not a weakly prime, because it can be changed into another prime (1343001733) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 671500865 + 671500866.

It is an arithmetic number, because the mean of its divisors is an integer number (671500866).

Almost surely, 2^1343001731 is an apocalyptic number.

1343001731 is a deficient number, since it is larger than the sum of its proper divisors (1).

1343001731 is an equidigital number, since it uses as much as digits as its factorization.

1343001731 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 756, while the sum is 23.

The square root of 1343001731 is about 36646.9880208456. The cubic root of 1343001731 is about 1103.2963738610.

The spelling of 1343001731 in words is "one billion, three hundred forty-three million, one thousand, seven hundred thirty-one".