1312140441 has 16 divisors (see below), whose sum is σ = 1808457728. Its totient is φ = 845370000.

The previous prime is 1312140433. The next prime is 1312140457. The reversal of 1312140441 is 1440412131.

It is not a de Polignac number, because 1312140441 - 2³ = 1312140433 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1312140481) 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, 60450 + ... + 79236.

It is an arithmetic number, because the mean of its divisors is an integer number (113028608).

Almost surely, 2^1312140441 is an apocalyptic number.

It is an amenable number.

1312140441 is a deficient number, since it is larger than the sum of its proper divisors (496317287).

1312140441 is a wasteful number, since it uses less digits than its factorization.

1312140441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19572.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1312140441 is about 36223.4791399170. The cubic root of 1312140441 is about 1094.7797951726.

Adding to 1312140441 its reverse (1440412131), we get a palindrome (2752552572).

The spelling of 1312140441 in words is "one billion, three hundred twelve million, one hundred forty thousand, four hundred forty-one".