1340422131 has 16 divisors (see below), whose sum is σ = 1814972544. Its totient is φ = 879787584.

The previous prime is 1340422123. The next prime is 1340422133. The reversal of 1340422131 is 1312240431.

It is not a de Polignac number, because 1340422131 - 2³ = 1340422123 is a prime.

It is a super-2 number, since 2×1340422131² = 3593462978549162322, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1340422098 and 1340422107.

It is not an unprimeable number, because it can be changed into a prime (1340422133) 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, 123340 + ... + 133766.

It is an arithmetic number, because the mean of its divisors is an integer number (113435784).

Almost surely, 2^1340422131 is an apocalyptic number.

1340422131 is a deficient number, since it is larger than the sum of its proper divisors (474550413).

1340422131 is a wasteful number, since it uses less digits than its factorization.

1340422131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11090.

The product of its (nonzero) digits is 576, while the sum is 21.

The square root of 1340422131 is about 36611.7758514935. The cubic root of 1340422131 is about 1102.5895275430.

Adding to 1340422131 its reverse (1312240431), we get a palindrome (2652662562).

The spelling of 1340422131 in words is "one billion, three hundred forty million, four hundred twenty-two thousand, one hundred thirty-one".