1340133231 has 16 divisors (see below), whose sum is σ = 1834979328. Its totient is φ = 869565600.

The previous prime is 1340133187. The next prime is 1340133241. The reversal of 1340133231 is 1323310431.

It is not a de Polignac number, because 1340133231 - 2⁶ = 1340133167 is a prime.

It is a super-2 number, since 2×1340133231² = 3591914153660998722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340133198 and 1340133207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1340133241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 735 + ... + 51776.

It is an arithmetic number, because the mean of its divisors is an integer number (114686208).

Almost surely, 2^1340133231 is an apocalyptic number.

1340133231 is a deficient number, since it is larger than the sum of its proper divisors (494846097).

1340133231 is a wasteful number, since it uses less digits than its factorization.

1340133231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52742.

The product of its (nonzero) digits is 648, while the sum is 21.

The square root of 1340133231 is about 36607.8301869969. The cubic root of 1340133231 is about 1102.5103084685.

Adding to 1340133231 its reverse (1323310431), we get a palindrome (2663443662).

The spelling of 1340133231 in words is "one billion, three hundred forty million, one hundred thirty-three thousand, two hundred thirty-one".