1240214311 has 24 divisors (see below), whose sum is σ = 1515096576. Its totient is φ = 994247040.

The previous prime is 1240214293. The next prime is 1240214321. The reversal of 1240214311 is 1134120421.

It is a de Polignac number, because none of the positive numbers 2^k-1240214311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1240214321) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 336006 + ... + 339676.

It is an arithmetic number, because the mean of its divisors is an integer number (63129024).

Almost surely, 2^1240214311 is an apocalyptic number.

1240214311 is a deficient number, since it is larger than the sum of its proper divisors (274882265).

1240214311 is a wasteful number, since it uses less digits than its factorization.

1240214311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3879 (or 3862 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1240214311 is about 35216.6766035638. The cubic root of 1240214311 is about 1074.3989605021.

Adding to 1240214311 its reverse (1134120421), we get a palindrome (2374334732).

The spelling of 1240214311 in words is "one billion, two hundred forty million, two hundred fourteen thousand, three hundred eleven".