1240231011 has 16 divisors (see below), whose sum is σ = 1666877184. Its totient is φ = 820223264.

The previous prime is 1240230973. The next prime is 1240231019. The reversal of 1240231011 is 1101320421.

1240231011 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 1240231011 - 2⁹ = 1240230499 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1240231019) 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, 279865 + ... + 284261.

It is an arithmetic number, because the mean of its divisors is an integer number (104179824).

Almost surely, 2^1240231011 is an apocalyptic number.

1240231011 is a deficient number, since it is larger than the sum of its proper divisors (426646173).

1240231011 is a wasteful number, since it uses less digits than its factorization.

1240231011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5130.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1240231011 is about 35216.9137063429. The cubic root of 1240231011 is about 1074.4037828897.

Adding to 1240231011 its reverse (1101320421), we get a palindrome (2341551432).

The spelling of 1240231011 in words is "one billion, two hundred forty million, two hundred thirty-one thousand, eleven".