1312442241 has 32 divisors (see below), whose sum is σ = 2016921600. Its totient is φ = 751625280.

The previous prime is 1312442237. The next prime is 1312442251. The reversal of 1312442241 is 1422442131.

It is not a de Polignac number, because 1312442241 - 2² = 1312442237 is a prime.

It is a super-2 number, since 2×1312442241² = 3445009271922204162, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1312442251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 30390 + ... + 59568.

It is an arithmetic number, because the mean of its divisors is an integer number (63028800).

Almost surely, 2^1312442241 is an apocalyptic number.

1312442241 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1312442241 is a deficient number, since it is larger than the sum of its proper divisors (704479359).

1312442241 is a wasteful number, since it uses less digits than its factorization.

1312442241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29269.

The product of its digits is 1536, while the sum is 24.

The square root of 1312442241 is about 36227.6447067705. The cubic root of 1312442241 is about 1094.8637239969.

Adding to 1312442241 its reverse (1422442131), we get a palindrome (2734884372).

The spelling of 1312442241 in words is "one billion, three hundred twelve million, four hundred forty-two thousand, two hundred forty-one".