1240201331 has 8 divisors (see below), whose sum is σ = 1294859040. Its totient is φ = 1185604992.

The previous prime is 1240201279. The next prime is 1240201337. The reversal of 1240201331 is 1331020421.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1240201331 - 2¹⁰ = 1240200307 is a prime.

It is a super-2 number, since 2×1240201331² = 3076198682828343122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1240201337) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28685 + ... + 57473.

It is an arithmetic number, because the mean of its divisors is an integer number (161857380).

Almost surely, 2^1240201331 is an apocalyptic number.

1240201331 is a deficient number, since it is larger than the sum of its proper divisors (54657709).

1240201331 is a wasteful number, since it uses less digits than its factorization.

1240201331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30685.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1240201331 is about 35216.4923153911. The cubic root of 1240201331 is about 1074.3952122932.

Adding to 1240201331 its reverse (1331020421), we get a palindrome (2571221752).

The spelling of 1240201331 in words is "one billion, two hundred forty million, two hundred one thousand, three hundred thirty-one".