1401241331 has 4 divisors (see below), whose sum is σ = 1601418672. Its totient is φ = 1201063992.

The previous prime is 1401241321. The next prime is 1401241333. The reversal of 1401241331 is 1331421041.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1331421041 = 1657 ⋅803513.

It is a cyclic number.

It is not a de Polignac number, because 1401241331 - 2¹⁰ = 1401240307 is a prime.

It is a super-2 number, since 2×1401241331² = 3926954535405303122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1401241333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100088660 + ... + 100088673.

It is an arithmetic number, because the mean of its divisors is an integer number (400354668).

Almost surely, 2^1401241331 is an apocalyptic number.

1401241331 is a deficient number, since it is larger than the sum of its proper divisors (200177341).

1401241331 is an equidigital number, since it uses as much as digits as its factorization.

1401241331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200177340.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1401241331 is about 37433.1581756068. The cubic root of 1401241331 is about 1119.0194785192.

Adding to 1401241331 its reverse (1331421041), we get a palindrome (2732662372).

The spelling of 1401241331 in words is "one billion, four hundred one million, two hundred forty-one thousand, three hundred thirty-one".