1013231111 has 8 divisors (see below), whose sum is σ = 1027928880. Its totient is φ = 998634112.

The previous prime is 1013231101. The next prime is 1013231117. The reversal of 1013231111 is 1111323101.

It is a happy number.

1013231111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1013231111 - 2⁶ = 1013231047 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1013231117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4820 + ... + 45273.

It is an arithmetic number, because the mean of its divisors is an integer number (128491110).

Almost surely, 2^1013231111 is an apocalyptic number.

1013231111 is a deficient number, since it is larger than the sum of its proper divisors (14697769).

1013231111 is a wasteful number, since it uses less digits than its factorization.

1013231111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50385.

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 1013231111 is about 31831.2913812808. The cubic root of 1013231111 is about 1004.3910606973.

Adding to 1013231111 its reverse (1111323101), we get a palindrome (2124554212).

The spelling of 1013231111 in words is "one billion, thirteen million, two hundred thirty-one thousand, one hundred eleven".